375691 has 4 divisors (see below), whose sum is σ = 384472. Its totient is φ = 366912.

The previous prime is 375673. The next prime is 375703. The reversal of 375691 is 196573.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196573 = 13 ⋅15121.

It is a cyclic number.

It is not a de Polignac number, because 375691 - 2⁷ = 375563 is a prime.

It is a super-2 number, since 2×375691² = 282287454962, which contains 22 as substring.

It is a Duffinian number.

375691 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (375631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4326 + ... + 4411.

It is an arithmetic number, because the mean of its divisors is an integer number (96118).

2³⁷⁵⁶⁹¹ is an apocalyptic number.

375691 is a deficient number, since it is larger than the sum of its proper divisors (8781).

375691 is an equidigital number, since it uses as much as digits as its factorization.

375691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780.

The product of its digits is 5670, while the sum is 31.

The square root of 375691 is about 612.9363751647. The cubic root of 375691 is about 72.1567444242.

The spelling of 375691 in words is "three hundred seventy-five thousand, six hundred ninety-one".