374991 has 8 divisors (see below), whose sum is σ = 503040. Its totient is φ = 248472.

The previous prime is 374989. The next prime is 374993. The reversal of 374991 is 199473.

It is an interprime number because it is at equal distance from previous prime (374989) and next prime (374993).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 374991 - 2¹ = 374989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (374993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (62880).

2³⁷⁴⁹⁹¹ is an apocalyptic number.

374991 is a deficient number, since it is larger than the sum of its proper divisors (128049).

374991 is a wasteful number, since it uses less digits than its factorization.

374991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its digits is 6804, while the sum is 33.

The square root of 374991 is about 612.3650871825. The cubic root of 374991 is about 72.1119016109. Note that the first 3 decimals are identical.

The spelling of 374991 in words is "three hundred seventy-four thousand, nine hundred ninety-one".