83659968 has 84 divisors (see below), whose sum is σ = 274066000. Its totient is φ = 23901696.

The previous prime is 83659963. The next prime is 83660033. The reversal of 83659968 is 86995638.

It is a tau number, because it is divible by the number of its divisors (84).

It is a super-2 number, since 2×83659968² = 13997980491522048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83659963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6343 + ... + 14406.

Almost surely, 2^83659968 is an apocalyptic number.

It is an amenable number.

83659968 is an abundant number, since it is smaller than the sum of its proper divisors (190406032).

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

83659968 is a wasteful number, since it uses less digits than its factorization.

83659968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774 (or 20761 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 83659968 is about 9146.5823125362. The cubic root of 83659968 is about 437.3601716955.

The spelling of 83659968 in words is "eighty-three million, six hundred fifty-nine thousand, nine hundred sixty-eight".