1057665467 has 4 divisors (see below), whose sum is σ = 1094136720. Its totient is φ = 1021194216.

The previous prime is 1057665463. The next prime is 1057665503. The reversal of 1057665467 is 7645667501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1057665467 - 2² = 1057665463 is a prime.

It is a super-2 number, since 2×1057665467² = 2237312480168656178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057665463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18235583 + ... + 18235640.

It is an arithmetic number, because the mean of its divisors is an integer number (273534180).

Almost surely, 2^1057665467 is an apocalyptic number.

1057665467 is a deficient number, since it is larger than the sum of its proper divisors (36471253).

1057665467 is an equidigital number, since it uses as much as digits as its factorization.

1057665467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36471252.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 1057665467 is about 32521.7691246955. The cubic root of 1057665467 is about 1018.8637439989.

The spelling of 1057665467 in words is "one billion, fifty-seven million, six hundred sixty-five thousand, four hundred sixty-seven".