874438681 has 4 divisors (see below), whose sum is σ = 877665664. Its totient is φ = 871211700.

The previous prime is 874438637. The next prime is 874438687. The reversal of 874438681 is 186834478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874438681 is a prime.

It is a super-2 number, since 2×874438681² = 1529286013658039522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (874438687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613085 + ... + 1613626.

It is an arithmetic number, because the mean of its divisors is an integer number (219416416).

Almost surely, 2^874438681 is an apocalyptic number.

It is an amenable number.

874438681 is a deficient number, since it is larger than the sum of its proper divisors (3226983).

874438681 is a wasteful number, since it uses less digits than its factorization.

874438681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226982.

The product of its digits is 1032192, while the sum is 49.

The square root of 874438681 is about 29570.9093705283. The cubic root of 874438681 is about 956.2610210415.

The spelling of 874438681 in words is "eight hundred seventy-four million, four hundred thirty-eight thousand, six hundred eighty-one".