83421338 has 32 divisors (see below), whose sum is σ = 168013440. Its totient is φ = 30000960.

The previous prime is 83421337. The next prime is 83421361. The reversal of 83421338 is 83312438.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (83421337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18833 + ... + 22836.

It is an arithmetic number, because the mean of its divisors is an integer number (5250420).

Almost surely, 2^83421338 is an apocalyptic number.

83421338 is an abundant number, since it is smaller than the sum of its proper divisors (84592102).

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

83421338 is a wasteful number, since it uses less digits than its factorization.

83421338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41702.

The product of its digits is 13824, while the sum is 32.

The square root of 83421338 is about 9133.5282339302. The cubic root of 83421338 is about 436.9439365893.

Subtracting from 83421338 its reverse (83312438), we obtain a square (108900 = 330²).

The spelling of 83421338 in words is "eighty-three million, four hundred twenty-one thousand, three hundred thirty-eight".