80842472 has 8 divisors (see below), whose sum is σ = 151579650. Its totient is φ = 40421232.

The previous prime is 80842471. The next prime is 80842477. The reversal of 80842472 is 27424808.

It can be written as a sum of positive squares in only one way, i.e., 42328036 + 38514436 = 6506^2 + 6206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80842471) 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 as a sum of consecutive naturals, namely, 5052647 + ... + 5052662.

Almost surely, 2^80842472 is an apocalyptic number.

It is an amenable number.

80842472 is a deficient number, since it is larger than the sum of its proper divisors (70737178).

80842472 is a wasteful number, since it uses less digits than its factorization.

80842472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105315 (or 10105311 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 80842472 is about 8991.2441853172. The cubic root of 80842472 is about 432.3942017939.

The spelling of 80842472 in words is "eighty million, eight hundred forty-two thousand, four hundred seventy-two".