373681 has 16 divisors (see below), whose sum is σ = 488448. Its totient is φ = 277200.

The previous prime is 373669. The next prime is 373693. The reversal of 373681 is 186373.

It is an interprime number because it is at equal distance from previous prime (373669) and next prime (373693).

It is not a de Polignac number, because 373681 - 2⁵ = 373649 is a prime.

It is a super-2 number, since 2×373681² = 279274979522, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 373681 parts by 864 straight cuts.

It is a Duffinian number.

Its product of digits (3024) is a multiple of the sum of its prime divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666 + ... + 1876.

It is an arithmetic number, because the mean of its divisors is an integer number (30528).

2³⁷³⁶⁸¹ is an apocalyptic number.

It is an amenable number.

373681 is a deficient number, since it is larger than the sum of its proper divisors (114767).

373681 is a wasteful number, since it uses less digits than its factorization.

373681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

The product of its digits is 3024, while the sum is 28.

The square root of 373681 is about 611.2945280305. The cubic root of 373681 is about 72.0278313187.

The spelling of 373681 in words is "three hundred seventy-three thousand, six hundred eighty-one".