1950997 has 4 divisors (see below), whose sum is σ = 1955340. Its totient is φ = 1946656.

The previous prime is 1950989. The next prime is 1951003. The reversal of 1950997 is 7990591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1012036 + 938961 = 1006^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1950997 - 2³ = 1950989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1951997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (488835).

2^1950997 is an apocalyptic number.

It is an amenable number.

1950997 is a deficient number, since it is larger than the sum of its proper divisors (4343).

1950997 is an equidigital number, since it uses as much as digits as its factorization.

1950997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 1950997 is about 1396.7809420235. The cubic root of 1950997 is about 124.9545861693.

The spelling of 1950997 in words is "one million, nine hundred fifty thousand, nine hundred ninety-seven".