671530372 has 12 divisors (see below), whose sum is σ = 1175395536. Its totient is φ = 335703080.

The previous prime is 671530337. The next prime is 671530373. The reversal of 671530372 is 273035176.

It is not an unprimeable number, because it can be changed into a prime (671530373) 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, 15843 + ... + 39925.

It is an arithmetic number, because the mean of its divisors is an integer number (97949628).

Almost surely, 2^671530372 is an apocalyptic number.

It is an amenable number.

671530372 is a deficient number, since it is larger than the sum of its proper divisors (503865164).

671530372 is a wasteful number, since it uses less digits than its factorization.

671530372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31058 (or 31056 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 671530372 is about 25913.9030637996. The cubic root of 671530372 is about 875.6997382831.

The spelling of 671530372 in words is "six hundred seventy-one million, five hundred thirty thousand, three hundred seventy-two".