83815080 has 64 divisors (see below), whose sum is σ = 264686400. Its totient is φ = 21173760.

The previous prime is 83815073. The next prime is 83815087. The reversal of 83815080 is 8051838.

It is an interprime number because it is at equal distance from previous prime (83815073) and next prime (83815087).

It is not an unprimeable number, because it can be changed into a prime (83815087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16101 + ... + 20660.

It is an arithmetic number, because the mean of its divisors is an integer number (4135725).

Almost surely, 2^83815080 is an apocalyptic number.

It is an amenable number.

83815080 is an abundant number, since it is smaller than the sum of its proper divisors (180871320).

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

83815080 is a wasteful number, since it uses less digits than its factorization.

83815080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36794 (or 36790 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 83815080 is about 9155.0576186062. The cubic root of 83815080 is about 437.6303045877.

The spelling of 83815080 in words is "eighty-three million, eight hundred fifteen thousand, eighty".