978057 has 12 divisors (see below), whose sum is σ = 1427140. Its totient is φ = 645408.

The previous prime is 978053. The next prime is 978067. The reversal of 978057 is 750879.

It can be written as a sum of positive squares in 2 ways, for example, as 767376 + 210681 = 876^2 + 459^2 .

It is not a de Polignac number, because 978057 - 2² = 978053 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978057.

It is not an unprimeable number, because it can be changed into a prime (978053) 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 11 ways as a sum of consecutive naturals, for example, 483 + ... + 1479.

2⁹⁷⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

978057 is a deficient number, since it is larger than the sum of its proper divisors (449083).

978057 is a wasteful number, since it uses less digits than its factorization.

978057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 978057 is about 988.9676435556. The cubic root of 978057 is about 99.2631505309.

The spelling of 978057 in words is "nine hundred seventy-eight thousand, fifty-seven".