1670857964 has 12 divisors (see below), whose sum is σ = 3018324288. Its totient is φ = 808479600.

The previous prime is 1670857963. The next prime is 1670857973. The reversal of 1670857964 is 4697580761.

It is not an unprimeable number, because it can be changed into a prime (1670857961) 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, 6737207 + ... + 6737454.

It is an arithmetic number, because the mean of its divisors is an integer number (251527024).

Almost surely, 2^1670857964 is an apocalyptic number.

It is an amenable number.

1670857964 is a deficient number, since it is larger than the sum of its proper divisors (1347466324).

1670857964 is a wasteful number, since it uses less digits than its factorization.

1670857964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13474696 (or 13474694 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 1670857964 is about 40876.1295134459. The cubic root of 1670857964 is about 1186.6241360355.

The spelling of 1670857964 in words is "one billion, six hundred seventy million, eight hundred fifty-seven thousand, nine hundred sixty-four".