671623364 has 36 divisors (see below), whose sum is σ = 1221212160. Its totient is φ = 323129520.

The previous prime is 671623357. The next prime is 671623411. The reversal of 671623364 is 463326176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524477 + ... + 525755.

It is an arithmetic number, because the mean of its divisors is an integer number (33922560).

Almost surely, 2^671623364 is an apocalyptic number.

It is an amenable number.

671623364 is a deficient number, since it is larger than the sum of its proper divisors (549588796).

671623364 is a wasteful number, since it uses less digits than its factorization.

671623364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1395 counting only the distinct ones).

The product of its digits is 108864, while the sum is 38.

The square root of 671623364 is about 25915.6972508941. The cubic root of 671623364 is about 875.7401580541.

The spelling of 671623364 in words is "six hundred seventy-one million, six hundred twenty-three thousand, three hundred sixty-four".