671973475 has 12 divisors (see below), whose sum is σ = 877102840. Its totient is φ = 509284800.

The previous prime is 671973457. The next prime is 671973493. The reversal of 671973475 is 574379176.

It is an interprime number because it is at equal distance from previous prime (671973457) and next prime (671973493).

It is not a de Polignac number, because 671973475 - 2¹⁵ = 671940707 is a prime.

It is a super-2 number, since 2×671973475² = 903096702207151250, which contains 22 as substring.

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, 706866 + ... + 707815.

Almost surely, 2^671973475 is an apocalyptic number.

671973475 is a deficient number, since it is larger than the sum of its proper divisors (205129365).

671973475 is a wasteful number, since it uses less digits than its factorization.

671973475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414710 (or 1414705 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 49.

The square root of 671973475 is about 25922.4511765381. The cubic root of 671973475 is about 875.8923033473.

The spelling of 671973475 in words is "six hundred seventy-one million, nine hundred seventy-three thousand, four hundred seventy-five".