76881431 has 8 divisors (see below), whose sum is σ = 84058128. Its totient is φ = 69736000.

The previous prime is 76881419. The next prime is 76881439. The reversal of 76881431 is 13418867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76881431 - 2⁶ = 76881367 is a prime.

It is a super-2 number, since 2×76881431² = 11821508865215522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76881439) 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 7 ways as a sum of consecutive naturals, for example, 2510 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (10507266).

Almost surely, 2^76881431 is an apocalyptic number.

76881431 is a deficient number, since it is larger than the sum of its proper divisors (7176697).

76881431 is a wasteful number, since it uses less digits than its factorization.

76881431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15633.

The product of its digits is 32256, while the sum is 38.

The square root of 76881431 is about 8768.2056887370. The cubic root of 76881431 is about 425.2136061178.

It can be divided in two parts, 7688 and 1431, that added together give a palindrome (9119).

The spelling of 76881431 in words is "seventy-six million, eight hundred eighty-one thousand, four hundred thirty-one".