76734381 has 4 divisors (see below), whose sum is σ = 102312512. Its totient is φ = 51156252.

The previous prime is 76734373. The next prime is 76734391. The reversal of 76734381 is 18343767.

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 not a de Polignac number, because 76734381 - 2³ = 76734373 is a prime.

It is a super-2 number, since 2×76734381² = 11776330454906322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76734341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12789061 + ... + 12789066.

It is an arithmetic number, because the mean of its divisors is an integer number (25578128).

Almost surely, 2^76734381 is an apocalyptic number.

It is an amenable number.

76734381 is a deficient number, since it is larger than the sum of its proper divisors (25578131).

76734381 is a wasteful number, since it uses less digits than its factorization.

76734381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25578130.

The product of its digits is 84672, while the sum is 39.

The square root of 76734381 is about 8759.8162651964. The cubic root of 76734381 is about 424.9423331215.

The spelling of 76734381 in words is "seventy-six million, seven hundred thirty-four thousand, three hundred eighty-one".