671424956 has 24 divisors (see below), whose sum is σ = 1212771840. Its totient is φ = 325089072.

The previous prime is 671424899. The next prime is 671424961. The reversal of 671424956 is 659424176.

It is a super-2 number, since 2×671424956² = 901622943079203872, 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 7 ways as a sum of consecutive naturals, for example, 5420 + ... + 37043.

It is an arithmetic number, because the mean of its divisors is an integer number (50532160).

Almost surely, 2^671424956 is an apocalyptic number.

It is an amenable number.

671424956 is a deficient number, since it is larger than the sum of its proper divisors (541346884).

671424956 is a wasteful number, since it uses less digits than its factorization.

671424956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42593 (or 42591 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 671424956 is about 25911.8690178844. The cubic root of 671424956 is about 875.6539138011.

The spelling of 671424956 in words is "six hundred seventy-one million, four hundred twenty-four thousand, nine hundred fifty-six".