374921 has 4 divisors (see below), whose sum is σ = 385092. Its totient is φ = 364752.

The previous prime is 374909. The next prime is 374929. The reversal of 374921 is 129473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129473 = 43 ⋅3011.

It can be written as a sum of positive squares in 2 ways, for example, as 319225 + 55696 = 565^2 + 236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-374921 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (374929) 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, 5030 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (96273).

2³⁷⁴⁹²¹ is an apocalyptic number.

It is an amenable number.

374921 is a deficient number, since it is larger than the sum of its proper divisors (10171).

374921 is a wasteful number, since it uses less digits than its factorization.

374921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170.

The product of its digits is 1512, while the sum is 26.

The square root of 374921 is about 612.3079290684. The cubic root of 374921 is about 72.1074142612.

The spelling of 374921 in words is "three hundred seventy-four thousand, nine hundred twenty-one".