76381371 has 18 divisors (see below), whose sum is σ = 121272060. Its totient is φ = 46291080.

The previous prime is 76381369. The next prime is 76381379. The reversal of 76381371 is 17318367.

76381371 is a `hidden beast` number, since 7 + 638 + 13 + 7 + 1 = 666.

It is not a de Polignac number, because 76381371 - 2¹ = 76381369 is a prime.

It is a super-2 number, since 2×76381371² = 11668227671679282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76381379) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33981 + ... + 36158.

Almost surely, 2^76381371 is an apocalyptic number.

76381371 is a deficient number, since it is larger than the sum of its proper divisors (44890689).

76381371 is a wasteful number, since it uses less digits than its factorization.

76381371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70167 (or 70153 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 76381371 is about 8739.6436426207. The cubic root of 76381371 is about 424.2896942601.

It can be divided in two parts, 7638 and 1371, that added together give a palindrome (9009).

The spelling of 76381371 in words is "seventy-six million, three hundred eighty-one thousand, three hundred seventy-one".