80976529 has 4 divisors (see below), whose sum is σ = 81001984. Its totient is φ = 80951076.

The previous prime is 80976521. The next prime is 80976547. The reversal of 80976529 is 92567908.

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 80976529 - 2³ = 80976521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80976521) 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 3 ways as a sum of consecutive naturals, for example, 7137 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (20250496).

Almost surely, 2^80976529 is an apocalyptic number.

It is an amenable number.

80976529 is a deficient number, since it is larger than the sum of its proper divisors (25455).

80976529 is a wasteful number, since it uses less digits than its factorization.

80976529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25454.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 80976529 is about 8998.6959610824. The cubic root of 80976529 is about 432.6330756480.

The spelling of 80976529 in words is "eighty million, nine hundred seventy-six thousand, five hundred twenty-nine".