671650652 has 12 divisors (see below), whose sum is σ = 1177502760. Its totient is φ = 335221296.

The previous prime is 671650621. The next prime is 671650667. The reversal of 671650652 is 256056176.

It is a super-2 number, since 2×671650652² = 902229196664050208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148502 + ... + 152957.

It is an arithmetic number, because the mean of its divisors is an integer number (98125230).

Almost surely, 2^671650652 is an apocalyptic number.

It is an amenable number.

671650652 is a deficient number, since it is larger than the sum of its proper divisors (505852108).

671650652 is a wasteful number, since it uses less digits than its factorization.

671650652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302020 (or 302018 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 671650652 is about 25916.2237218311. The cubic root of 671650652 is about 875.7520183094.

The spelling of 671650652 in words is "six hundred seventy-one million, six hundred fifty thousand, six hundred fifty-two".