83490516 has 18 divisors (see below), whose sum is σ = 211045562. Its totient is φ = 27830160.

The previous prime is 83490499. The next prime is 83490521. The reversal of 83490516 is 61509438.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 3459600 = 8946^2 + 1860^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2319181 = 83490516 / (8 + 3 + 4 + 9 + 0 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1159555 + ... + 1159626.

Almost surely, 2^83490516 is an apocalyptic number.

It is an amenable number.

83490516 is an abundant number, since it is smaller than the sum of its proper divisors (127555046).

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

83490516 is a wasteful number, since it uses less digits than its factorization.

83490516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319191 (or 2319186 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 83490516 is about 9137.3144851209. The cubic root of 83490516 is about 437.0646832987.

The spelling of 83490516 in words is "eighty-three million, four hundred ninety thousand, five hundred sixteen".