672993630 has 64 divisors (see below), whose sum is σ = 1797580800. Its totient is φ = 179172000.

The previous prime is 672993619. The next prime is 672993667. The reversal of 672993630 is 36399276.

672993630 is a `hidden beast` number, since 6 + 7 + 2 + 9 + 9 + 3 + 630 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201111 + ... + 204429.

It is an arithmetic number, because the mean of its divisors is an integer number (28087200).

Almost surely, 2^672993630 is an apocalyptic number.

672993630 is an abundant number, since it is smaller than the sum of its proper divisors (1124587170).

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

672993630 is a wasteful number, since it uses less digits than its factorization.

672993630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 672993630 is about 25942.1207691276. The cubic root of 672993630 is about 876.3353238675.

The spelling of 672993630 in words is "six hundred seventy-two million, nine hundred ninety-three thousand, six hundred thirty".