76729930 has 8 divisors (see below), whose sum is σ = 138113892. Its totient is φ = 30691968.

The previous prime is 76729927. The next prime is 76729937. The reversal of 76729930 is 3992767.

It can be written as a sum of positive squares in 2 ways, for example, as 76615009 + 114921 = 8753^2 + 339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (76729937) 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, 3836487 + ... + 3836506.

Almost surely, 2^76729930 is an apocalyptic number.

76729930 is a deficient number, since it is larger than the sum of its proper divisors (61383962).

76729930 is a wasteful number, since it uses less digits than its factorization.

76729930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7673000.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 76729930 is about 8759.5622036721. The cubic root of 76729930 is about 424.9341166616.

The spelling of 76729930 in words is "seventy-six million, seven hundred twenty-nine thousand, nine hundred thirty".