76980577 has 4 divisors (see below), whose sum is σ = 77139136. Its totient is φ = 76822020.

The previous prime is 76980551. The next prime is 76980581. The reversal of 76980577 is 77508967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 76980577 - 2¹¹ = 76978529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76980577.

It is not an unprimeable number, because it can be changed into a prime (76986577) 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 3 ways as a sum of consecutive naturals, for example, 78549 + ... + 79522.

It is an arithmetic number, because the mean of its divisors is an integer number (19284784).

Almost surely, 2^76980577 is an apocalyptic number.

It is an amenable number.

76980577 is a deficient number, since it is larger than the sum of its proper divisors (158559).

76980577 is a wasteful number, since it uses less digits than its factorization.

76980577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158558.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 76980577 is about 8773.8575894529. The cubic root of 76980577 is about 425.3963122158.

The spelling of 76980577 in words is "seventy-six million, nine hundred eighty thousand, five hundred seventy-seven".