671879313 has 32 divisors (see below), whose sum is σ = 1139609600. Its totient is φ = 383244048.

The previous prime is 671879269. The next prime is 671879353. The reversal of 671879313 is 313978176.

It is not a de Polignac number, because 671879313 - 2⁶ = 671879249 is a prime.

It is a super-2 number, since 2×671879313² = 902843622474703938, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671879353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114120 + ... + 119862.

It is an arithmetic number, because the mean of its divisors is an integer number (35612800).

Almost surely, 2^671879313 is an apocalyptic number.

671879313 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

671879313 is a deficient number, since it is larger than the sum of its proper divisors (467730287).

671879313 is a wasteful number, since it uses less digits than its factorization.

671879313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6372 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 671879313 is about 25920.6348880578. The cubic root of 671879313 is about 875.8513892205.

The spelling of 671879313 in words is "six hundred seventy-one million, eight hundred seventy-nine thousand, three hundred thirteen".