670264057 has 4 divisors (see below), whose sum is σ = 671757300. Its totient is φ = 668770816.

The previous prime is 670264043. The next prime is 670264061. The reversal of 670264057 is 750462076.

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

It can be written as a sum of positive squares in 2 ways, for example, as 183223296 + 487040761 = 13536^2 + 22069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670264057 is a prime.

It is a super-2 number, since 2×670264057² = 898507812212198498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670264087) 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, 745948 + ... + 746845.

It is an arithmetic number, because the mean of its divisors is an integer number (167939325).

Almost surely, 2^670264057 is an apocalyptic number.

It is an amenable number.

670264057 is a deficient number, since it is larger than the sum of its proper divisors (1493243).

670264057 is a wasteful number, since it uses less digits than its factorization.

670264057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493242.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 670264057 is about 25889.4584145748. The cubic root of 670264057 is about 875.1489518397.

The spelling of 670264057 in words is "six hundred seventy million, two hundred sixty-four thousand, fifty-seven".