80972594 has 4 divisors (see below), whose sum is σ = 121458894. Its totient is φ = 40486296.

The previous prime is 80972579. The next prime is 80972629. The reversal of 80972594 is 49527908.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50225569 + 30747025 = 7087^2 + 5545^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20243147 + ... + 20243150.

Almost surely, 2^80972594 is an apocalyptic number.

80972594 is a deficient number, since it is larger than the sum of its proper divisors (40486300).

80972594 is a wasteful number, since it uses less digits than its factorization.

80972594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40486299.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 80972594 is about 8998.4773156351. The cubic root of 80972594 is about 432.6260676967.

The spelling of 80972594 in words is "eighty million, nine hundred seventy-two thousand, five hundred ninety-four".