874396531 has 2 divisors, whose sum is σ = 874396532. Its totient is φ = 874396530.

The previous prime is 874396499. The next prime is 874396591. The reversal of 874396531 is 135693478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 874396531 - 2⁵ = 874396499 is a prime.

It is a super-2 number, since 2×874396531² = 1529138586849667922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (874396591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437198265 + 437198266.

It is an arithmetic number, because the mean of its divisors is an integer number (437198266).

Almost surely, 2^874396531 is an apocalyptic number.

874396531 is a deficient number, since it is larger than the sum of its proper divisors (1).

874396531 is an equidigital number, since it uses as much as digits as its factorization.

874396531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 874396531 is about 29570.1966682672. The cubic root of 874396531 is about 956.2456561182.

The spelling of 874396531 in words is "eight hundred seventy-four million, three hundred ninety-six thousand, five hundred thirty-one".