80515408 has 20 divisors (see below), whose sum is σ = 156382228. Its totient is φ = 40158720.

The previous prime is 80515403. The next prime is 80515429. The reversal of 80515408 is 80451508.

It can be written as a sum of positive squares in 2 ways, for example, as 30558784 + 49956624 = 5528^2 + 7068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80515408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80515403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760 + ... + 12712.

Almost surely, 2^80515408 is an apocalyptic number.

It is an amenable number.

80515408 is a deficient number, since it is larger than the sum of its proper divisors (75866820).

80515408 is a wasteful number, since it uses less digits than its factorization.

80515408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12382 (or 12376 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 80515408 is about 8973.0378356496. The cubic root of 80515408 is about 431.8103019437.

The spelling of 80515408 in words is "eighty million, five hundred fifteen thousand, four hundred eight".