76729685 has 8 divisors (see below), whose sum is σ = 92172600. Its totient is φ = 61319104.

The previous prime is 76729669. The next prime is 76729699. The reversal of 76729685 is 58692767.

It can be written as a sum of positive squares in 4 ways, for example, as 237169 + 76492516 = 487^2 + 8746^2 .

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 76729685 - 2⁴ = 76729669 is a prime.

It is a congruent number.

It is an unprimeable number.

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 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (11521575).

Almost surely, 2^76729685 is an apocalyptic number.

It is an amenable number.

76729685 is a deficient number, since it is larger than the sum of its proper divisors (15442915).

76729685 is a wasteful number, since it uses less digits than its factorization.

76729685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16167.

The product of its digits is 1270080, while the sum is 50.

The square root of 76729685 is about 8759.5482189437. The cubic root of 76729685 is about 424.9336643871.

The spelling of 76729685 in words is "seventy-six million, seven hundred twenty-nine thousand, six hundred eighty-five".