76726730 has 16 divisors (see below), whose sum is σ = 138251880. Its totient is φ = 30658752.

The previous prime is 76726717. The next prime is 76726733. The reversal of 76726730 is 3762767.

It can be written as a sum of positive squares in 4 ways, for example, as 16834609 + 59892121 = 4103^2 + 7739^2 .

It is not an unprimeable number, because it can be changed into a prime (76726733) 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, 7736 + ... + 14604.

Almost surely, 2^76726730 is an apocalyptic number.

76726730 is a deficient number, since it is larger than the sum of its proper divisors (61525150).

76726730 is a wasteful number, since it uses less digits than its factorization.

76726730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7993.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 76726730 is about 8759.3795442371. The cubic root of 76726730 is about 424.9282093271.

The spelling of 76726730 in words is "seventy-six million, seven hundred twenty-six thousand, seven hundred thirty".