1057994973 has 32 divisors (see below), whose sum is σ = 1793617920. Its totient is φ = 603791280.

The previous prime is 1057994911. The next prime is 1057994981. The reversal of 1057994973 is 3794997501.

It is a happy number.

1057994973 is a `hidden beast` number, since 10 + 57 + 99 + 497 + 3 = 666.

It is not a de Polignac number, because 1057994973 - 2¹⁴ = 1057978589 is a prime.

It is a super-2 number, since 2×1057994973² = 2238706725786541458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057992973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164488 + ... + 170798.

It is an arithmetic number, because the mean of its divisors is an integer number (56050560).

Almost surely, 2^1057994973 is an apocalyptic number.

It is an amenable number.

1057994973 is a deficient number, since it is larger than the sum of its proper divisors (735622947).

1057994973 is an equidigital number, since it uses as much as digits as its factorization.

1057994973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7214 (or 7208 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The square root of 1057994973 is about 32526.8346600157. The cubic root of 1057994973 is about 1018.9695389059.

The spelling of 1057994973 in words is "one billion, fifty-seven million, nine hundred ninety-four thousand, nine hundred seventy-three".