971937049 has 4 divisors (see below), whose sum is σ = 982857780. Its totient is φ = 961016320.

The previous prime is 971937037. The next prime is 971937061. The reversal of 971937049 is 940739179.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940739179 = 307 ⋅3064297.

It is an interprime number because it is at equal distance from previous prime (971937037) and next prime (971937061).

It can be written as a sum of positive squares in 2 ways, for example, as 681575449 + 290361600 = 26107^2 + 17040^2 .

It is a cyclic number.

It is not a de Polignac number, because 971937049 - 2²³ = 963548441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971936993 and 971937011.

It is not an unprimeable number, because it can be changed into a prime (971931049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5460232 + ... + 5460409.

It is an arithmetic number, because the mean of its divisors is an integer number (245714445).

Almost surely, 2^971937049 is an apocalyptic number.

It is an amenable number.

971937049 is a deficient number, since it is larger than the sum of its proper divisors (10920731).

971937049 is a wasteful number, since it uses less digits than its factorization.

971937049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10920730.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 971937049 is about 31175.9049427599. The cubic root of 971937049 is about 990.5567894719.

The spelling of 971937049 in words is "nine hundred seventy-one million, nine hundred thirty-seven thousand, forty-nine".