670671057 has 8 divisors (see below), whose sum is σ = 1021974976. Its totient is φ = 383240592.

The previous prime is 670671037. The next prime is 670671061. The reversal of 670671057 is 750176076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670671057 - 2¹¹ = 670669009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670671017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15968338 + ... + 15968379.

It is an arithmetic number, because the mean of its divisors is an integer number (127746872).

Almost surely, 2^670671057 is an apocalyptic number.

It is an amenable number.

670671057 is a deficient number, since it is larger than the sum of its proper divisors (351303919).

670671057 is a wasteful number, since it uses less digits than its factorization.

670671057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31936727.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 670671057 is about 25897.3175637941. The cubic root of 670671057 is about 875.3260529633.

The spelling of 670671057 in words is "six hundred seventy million, six hundred seventy-one thousand, fifty-seven".