1057978 has 24 divisors (see below), whose sum is σ = 1787292. Its totient is φ = 467712.

The previous prime is 1057963. The next prime is 1057981. The reversal of 1057978 is 8797501.

It can be written as a sum of positive squares in 6 ways, for example, as 908209 + 149769 = 953^2 + 387^2 .

It is a super-2 number, since 2×1057978² = 2238634896968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28576 + ... + 28612.

2^1057978 is an apocalyptic number.

1057978 is a deficient number, since it is larger than the sum of its proper divisors (729314).

1057978 is a wasteful number, since it uses less digits than its factorization.

1057978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1057978 is about 1028.5805753562. The cubic root of 1057978 is about 101.8964089900.

The spelling of 1057978 in words is "one million, fifty-seven thousand, nine hundred seventy-eight".