83899422 has 64 divisors (see below), whose sum is σ = 192153600. Its totient is φ = 27125280.

The previous prime is 83899381. The next prime is 83899433. The reversal of 83899422 is 22499838.

It is a super-2 number, since 2×83899422² = 14078226023868168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (248832) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302748 + ... + 303024.

It is an arithmetic number, because the mean of its divisors is an integer number (3002400).

Almost surely, 2^83899422 is an apocalyptic number.

83899422 is the 7479-th pentagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83899422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96076800).

83899422 is an abundant number, since it is smaller than the sum of its proper divisors (108254178).

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

83899422 is a wasteful number, since it uses less digits than its factorization.

83899422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 432 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 83899422 is about 9159.6627667180. The cubic root of 83899422 is about 437.7770492275. Note that the first 3 decimals are identical.

The spelling of 83899422 in words is "eighty-three million, eight hundred ninety-nine thousand, four hundred twenty-two".