83516945 has 16 divisors (see below), whose sum is σ = 104924160. Its totient is φ = 63739200.

The previous prime is 83516941. The next prime is 83516963. The reversal of 83516945 is 54961538.

It is not a de Polignac number, because 83516945 - 2² = 83516941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83516941) 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, 7211 + ... + 14799.

It is an arithmetic number, because the mean of its divisors is an integer number (6557760).

Almost surely, 2^83516945 is an apocalyptic number.

It is an amenable number.

83516945 is a deficient number, since it is larger than the sum of its proper divisors (21407215).

83516945 is a wasteful number, since it uses less digits than its factorization.

83516945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696.

The product of its digits is 129600, while the sum is 41.

The square root of 83516945 is about 9138.7605833614. The cubic root of 83516945 is about 437.1107961765.

The spelling of 83516945 in words is "eighty-three million, five hundred sixteen thousand, nine hundred forty-five".