672030664 has 16 divisors (see below), whose sum is σ = 1262540700. Its totient is φ = 335353152.

The previous prime is 672030661. The next prime is 672030673. The reversal of 672030664 is 466030276.

It can be written as a sum of positive squares in 2 ways, for example, as 607228164 + 64802500 = 24642^2 + 8050^2 .

It is not an unprimeable number, because it can be changed into a prime (672030661) 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, 78447 + ... + 86590.

Almost surely, 2^672030664 is an apocalyptic number.

It is an amenable number.

672030664 is a deficient number, since it is larger than the sum of its proper divisors (590510036).

672030664 is a wasteful number, since it uses less digits than its factorization.

672030664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165552 (or 165548 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 672030664 is about 25923.5542316250. The cubic root of 672030664 is about 875.9171505502.

The spelling of 672030664 in words is "six hundred seventy-two million, thirty thousand, six hundred sixty-four".