83604442 has 4 divisors (see below), whose sum is σ = 125406666. Its totient is φ = 41802220.

The previous prime is 83604439. The next prime is 83604449. The reversal of 83604442 is 24440638.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48427681 + 35176761 = 6959^2 + 5931^2 .

It is not an unprimeable number, because it can be changed into a prime (83604449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20901109 + ... + 20901112.

Almost surely, 2^83604442 is an apocalyptic number.

83604442 is a deficient number, since it is larger than the sum of its proper divisors (41802224).

83604442 is a wasteful number, since it uses less digits than its factorization.

83604442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41802223.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 83604442 is about 9143.5464673178. The cubic root of 83604442 is about 437.2633900999.

The spelling of 83604442 in words is "eighty-three million, six hundred four thousand, four hundred forty-two".