80892506 has 4 divisors (see below), whose sum is σ = 121338762. Its totient is φ = 40446252.

The previous prime is 80892491. The next prime is 80892509. The reversal of 80892506 is 60529808.

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., 54626881 + 26265625 = 7391^2 + 5125^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80892506.

It is not an unprimeable number, because it can be changed into a prime (80892509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20223125 + ... + 20223128.

Almost surely, 2^80892506 is an apocalyptic number.

80892506 is a deficient number, since it is larger than the sum of its proper divisors (40446256).

80892506 is a wasteful number, since it uses less digits than its factorization.

80892506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40446255.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 80892506 is about 8994.0261284922. The cubic root of 80892506 is about 432.4833873802.

The spelling of 80892506 in words is "eighty million, eight hundred ninety-two thousand, five hundred six".