76343681 has 8 divisors (see below), whose sum is σ = 78505728. Its totient is φ = 74196000.

The previous prime is 76343677. The next prime is 76343711. The reversal of 76343681 is 18634367.

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 76343681 - 2² = 76343677 is a prime.

It is a super-2 number, since 2×76343681² = 11656715257259522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76343611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7676 + ... + 14546.

It is an arithmetic number, because the mean of its divisors is an integer number (9813216).

Almost surely, 2^76343681 is an apocalyptic number.

It is an amenable number.

76343681 is a deficient number, since it is larger than the sum of its proper divisors (2162047).

76343681 is a wasteful number, since it uses less digits than its factorization.

76343681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7183.

The product of its digits is 72576, while the sum is 38.

The square root of 76343681 is about 8737.4871101479. The cubic root of 76343681 is about 424.2198949125.

It can be divided in two parts, 763 and 43681, that added together give a palindrome (44444).

The spelling of 76343681 in words is "seventy-six million, three hundred forty-three thousand, six hundred eighty-one".