83359988 has 6 divisors (see below), whose sum is σ = 145879986. Its totient is φ = 41679992.

The previous prime is 83359951. The next prime is 83360041. The reversal of 83359988 is 88995338.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48052624 + 35307364 = 6932^2 + 5942^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10419995 + ... + 10420002.

It is an arithmetic number, because the mean of its divisors is an integer number (24313331).

Almost surely, 2^83359988 is an apocalyptic number.

It is an amenable number.

83359988 is a deficient number, since it is larger than the sum of its proper divisors (62519998).

83359988 is a wasteful number, since it uses less digits than its factorization.

83359988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20840001 (or 20839999 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 83359988 is about 9130.1691112487. The cubic root of 83359988 is about 436.8367973960.

The spelling of 83359988 in words is "eighty-three million, three hundred fifty-nine thousand, nine hundred eighty-eight".