83688528 has 80 divisors (see below), whose sum is σ = 269554176. Its totient is φ = 21736320.

The previous prime is 83688511. The next prime is 83688533. The reversal of 83688528 is 82588638.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 7626 + ... + 15017.

Almost surely, 2^83688528 is an apocalyptic number.

83688528 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

83688528 is an abundant number, since it is smaller than the sum of its proper divisors (185865648).

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

83688528 is a wasteful number, since it uses less digits than its factorization.

83688528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22672 (or 22666 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The square root of 83688528 is about 9148.1434182024. The cubic root of 83688528 is about 437.4099349840.

The spelling of 83688528 in words is "eighty-three million, six hundred eighty-eight thousand, five hundred twenty-eight".