1057646417 has 2 divisors, whose sum is σ = 1057646418. Its totient is φ = 1057646416.

The previous prime is 1057646393. The next prime is 1057646423. The reversal of 1057646417 is 7146467501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057615441 + 30976 = 32521^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1057646417 - 2¹² = 1057642321 is a prime.

It is a super-2 number, since 2×1057646417² = 2237231886785875778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1057646477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528823208 + 528823209.

It is an arithmetic number, because the mean of its divisors is an integer number (528823209).

Almost surely, 2^1057646417 is an apocalyptic number.

It is an amenable number.

1057646417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1057646417 is an equidigital number, since it uses as much as digits as its factorization.

1057646417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1057646417 is about 32521.4762426308. The cubic root of 1057646417 is about 1018.8576269195.

The spelling of 1057646417 in words is "one billion, fifty-seven million, six hundred forty-six thousand, four hundred seventeen".