83520097 has 4 divisors (see below), whose sum is σ = 83981716. Its totient is φ = 83058480.

The previous prime is 83520089. The next prime is 83520109. The reversal of 83520097 is 79002538.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22695696 + 60824401 = 4764^2 + 7799^2 .

It is a cyclic number.

It is not a de Polignac number, because 83520097 - 2³ = 83520089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83520037) 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, 230538 + ... + 230899.

It is an arithmetic number, because the mean of its divisors is an integer number (20995429).

Almost surely, 2^83520097 is an apocalyptic number.

It is an amenable number.

83520097 is a deficient number, since it is larger than the sum of its proper divisors (461619).

83520097 is a wasteful number, since it uses less digits than its factorization.

83520097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461618.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 83520097 is about 9138.9330340035. The cubic root of 83520097 is about 437.1162950841.

The spelling of 83520097 in words is "eighty-three million, five hundred twenty thousand, ninety-seven".