76606621 has 16 divisors (see below), whose sum is σ = 94826368. Its totient is φ = 60264000.

The previous prime is 76606609. The next prime is 76606643. The reversal of 76606621 is 12660667.

It is a cyclic number.

It is not a de Polignac number, because 76606621 - 2⁵ = 76606589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76606601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14146 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (5926648).

Almost surely, 2^76606621 is an apocalyptic number.

It is an amenable number.

76606621 is a deficient number, since it is larger than the sum of its proper divisors (18219747).

76606621 is a wasteful number, since it uses less digits than its factorization.

76606621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 76606621 is about 8752.5208368789. The cubic root of 76606621 is about 424.7063641841.

The spelling of 76606621 in words is "seventy-six million, six hundred six thousand, six hundred twenty-one".