83540884 has 18 divisors (see below), whose sum is σ = 170065770. Its totient is φ = 35803152.

The previous prime is 83540827. The next prime is 83540887. The reversal of 83540884 is 48804538.

It can be written as a sum of positive squares in only one way, i.e., 43850884 + 39690000 = 6622^2 + 6300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83540887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212919 + ... + 213310.

Almost surely, 2^83540884 is an apocalyptic number.

It is an amenable number.

83540884 is an abundant number, since it is smaller than the sum of its proper divisors (86524886).

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

83540884 is a wasteful number, since it uses less digits than its factorization.

83540884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426247 (or 426238 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 83540884 is about 9140.0702404303. The cubic root of 83540884 is about 437.1525561479.

The spelling of 83540884 in words is "eighty-three million, five hundred forty thousand, eight hundred eighty-four".