83616965 has 16 divisors (see below), whose sum is σ = 106479360. Its totient is φ = 62818560.

The previous prime is 83616919. The next prime is 83616977. The reversal of 83616965 is 56961638.

It is a de Polignac number, because none of the positive numbers 2^k-83616965 is a prime.

It is a super-2 number, since 2×83616965² = 13983593671622450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52856 + ... + 54414.

It is an arithmetic number, because the mean of its divisors is an integer number (6654960).

Almost surely, 2^83616965 is an apocalyptic number.

83616965 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83616965 is a deficient number, since it is larger than the sum of its proper divisors (22862395).

83616965 is a wasteful number, since it uses less digits than its factorization.

83616965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its digits is 233280, while the sum is 44.

The square root of 83616965 is about 9144.2312416080. The cubic root of 83616965 is about 437.2852213803.

The spelling of 83616965 in words is "eighty-three million, six hundred sixteen thousand, nine hundred sixty-five".