83947488 has 48 divisors (see below), whose sum is σ = 220993920. Its totient is φ = 27902336.

The previous prime is 83947477. The next prime is 83947519. The reversal of 83947488 is 88474938.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 83947488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39181 + ... + 41267.

It is an arithmetic number, because the mean of its divisors is an integer number (4604040).

Almost surely, 2^83947488 is an apocalyptic number.

It is an amenable number.

83947488 is an abundant number, since it is smaller than the sum of its proper divisors (137046432).

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

83947488 is a wasteful number, since it uses less digits than its factorization.

83947488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519 (or 2511 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 83947488 is about 9162.2861775869. The cubic root of 83947488 is about 437.8606341282.

The spelling of 83947488 in words is "eighty-three million, nine hundred forty-seven thousand, four hundred eighty-eight".