375691913 has 4 divisors (see below), whose sum is σ = 392026368. Its totient is φ = 359357460.

The previous prime is 375691889. The next prime is 375691919. The reversal of 375691913 is 319196573.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319196573 = 17 ⋅18776269.

It is a cyclic number.

It is not a de Polignac number, because 375691913 - 2²⁶ = 308583049 is a prime.

It is a super-2 number, since 2×375691913² = 282288826987199138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (375691919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8167193 + ... + 8167238.

It is an arithmetic number, because the mean of its divisors is an integer number (98006592).

Almost surely, 2^375691913 is an apocalyptic number.

It is an amenable number.

375691913 is a deficient number, since it is larger than the sum of its proper divisors (16334455).

375691913 is a wasteful number, since it uses less digits than its factorization.

375691913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16334454.

The product of its digits is 153090, while the sum is 44.

The square root of 375691913 is about 19382.7736147333. The cubic root of 375691913 is about 721.5680287565.

The spelling of 375691913 in words is "three hundred seventy-five million, six hundred ninety-one thousand, nine hundred thirteen".