874931381 has 2 divisors, whose sum is σ = 874931382. Its totient is φ = 874931380.

The previous prime is 874931371. The next prime is 874931389. The reversal of 874931381 is 183139478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503598481 + 371332900 = 22441^2 + 19270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874931381 is a prime.

It is a super-2 number, since 2×874931381² = 1531009842917134322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (874931389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437465690 + 437465691.

It is an arithmetic number, because the mean of its divisors is an integer number (437465691).

Almost surely, 2^874931381 is an apocalyptic number.

It is an amenable number.

874931381 is a deficient number, since it is larger than the sum of its proper divisors (1).

874931381 is an equidigital number, since it uses as much as digits as its factorization.

874931381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 874931381 is about 29579.2390199613. The cubic root of 874931381 is about 956.4405881755.

The spelling of 874931381 in words is "eight hundred seventy-four million, nine hundred thirty-one thousand, three hundred eighty-one".