80869572 has 36 divisors (see below), whose sum is σ = 233623936. Its totient is φ = 23105520.

The previous prime is 80869571. The next prime is 80869577. The reversal of 80869572 is 27596808.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (80869571) 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 11 ways as a sum of consecutive naturals, for example, 160204 + ... + 160707.

Almost surely, 2^80869572 is an apocalyptic number.

It is an amenable number.

80869572 is an abundant number, since it is smaller than the sum of its proper divisors (152754364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80869572 is a wasteful number, since it uses less digits than its factorization.

80869572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320928 (or 320923 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 80869572 is about 8992.7510807316. The cubic root of 80869572 is about 432.4425121002.

The spelling of 80869572 in words is "eighty million, eight hundred sixty-nine thousand, five hundred seventy-two".