670564900 has 18 divisors (see below), whose sum is σ = 1455126050. Its totient is φ = 268225920.

The previous prime is 670564897. The next prime is 670564943. The reversal of 670564900 is 9465076.

It can be written as a sum of positive squares in 3 ways, for example, as 35928036 + 634636864 = 5994^2 + 25192^2 .

It is a super-2 number, since 2×670564900² = 899314570224020000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 670564900.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3352725 + ... + 3352924.

Almost surely, 2^670564900 is an apocalyptic number.

It is an amenable number.

670564900 is an abundant number, since it is smaller than the sum of its proper divisors (784561150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670564900 is a wasteful number, since it uses less digits than its factorization.

670564900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705663 (or 6705656 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 670564900 is about 25895.2679074768. The cubic root of 670564900 is about 875.2798669382.

The spelling of 670564900 in words is "six hundred seventy million, five hundred sixty-four thousand, nine hundred".