83438580 has 24 divisors (see below), whose sum is σ = 233628192. Its totient is φ = 22250272.

The previous prime is 83438573. The next prime is 83438587. The reversal of 83438580 is 8583438.

It is an interprime number because it is at equal distance from previous prime (83438573) and next prime (83438587).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83438587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695262 + ... + 695381.

It is an arithmetic number, because the mean of its divisors is an integer number (9734508).

Almost surely, 2^83438580 is an apocalyptic number.

It is an amenable number.

83438580 is an abundant number, since it is smaller than the sum of its proper divisors (150189612).

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

83438580 is a wasteful number, since it uses less digits than its factorization.

83438580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390655 (or 1390653 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 83438580 is about 9134.4720701308. The cubic root of 83438580 is about 436.9740378741.

The spelling of 83438580 in words is "eighty-three million, four hundred thirty-eight thousand, five hundred eighty".