375085991 has 24 divisors (see below), whose sum is σ = 443744256. Its totient is φ = 310549680.

The previous prime is 375085979. The next prime is 375085993. The reversal of 375085991 is 199580573.

It is not a de Polignac number, because 375085991 - 2⁶ = 375085927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375085993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1963706 + ... + 1963896.

It is an arithmetic number, because the mean of its divisors is an integer number (18489344).

Almost surely, 2^375085991 is an apocalyptic number.

375085991 is a deficient number, since it is larger than the sum of its proper divisors (68658265).

375085991 is a wasteful number, since it uses less digits than its factorization.

375085991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 375085991 is about 19367.1368818419. The cubic root of 375085991 is about 721.1799011556.

The spelling of 375085991 in words is "three hundred seventy-five million, eighty-five thousand, nine hundred ninety-one".