373897831 has 4 divisors (see below), whose sum is σ = 381853152. Its totient is φ = 365942512.

The previous prime is 373897801. The next prime is 373897837. The reversal of 373897831 is 138798373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138798373 = 7 ⋅19828339.

It is a cyclic number.

It is not a de Polignac number, because 373897831 - 2¹¹ = 373895783 is a prime.

It is a super-2 number, since 2×373897831² = 279599176053009122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373897837) 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, 3977590 + ... + 3977683.

It is an arithmetic number, because the mean of its divisors is an integer number (95463288).

Almost surely, 2^373897831 is an apocalyptic number.

373897831 is a deficient number, since it is larger than the sum of its proper divisors (7955321).

373897831 is an equidigital number, since it uses as much as digits as its factorization.

373897831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7955320.

The product of its digits is 762048, while the sum is 49.

The square root of 373897831 is about 19336.4379087773. The cubic root of 373897831 is about 720.4176017503.

The spelling of 373897831 in words is "three hundred seventy-three million, eight hundred ninety-seven thousand, eight hundred thirty-one".