1977049 has 6 divisors (see below), whose sum is σ = 2100494. Its totient is φ = 1860480.

The previous prime is 1977023. The next prime is 1977067. The reversal of 1977049 is 9407791.

It can be written as a sum of positive squares in 3 ways, for example, as 1065024 + 912025 = 1032^2 + 955^2 .

It is not a de Polignac number, because 1977049 - 2⁹ = 1976537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1976999 and 1977017.

It is not an unprimeable number, because it can be changed into a prime (1977089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3132 + ... + 3709.

2^1977049 is an apocalyptic number.

It is an amenable number.

1977049 is a deficient number, since it is larger than the sum of its proper divisors (123445).

1977049 is an equidigital number, since it uses as much as digits as its factorization.

1977049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875 (or 6858 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 1977049 is about 1406.0757447592. The cubic root of 1977049 is about 125.5083088418.

The spelling of 1977049 in words is "one million, nine hundred seventy-seven thousand, forty-nine".