83621442 has 16 divisors (see below), whose sum is σ = 173010240. Its totient is φ = 26912592.

The previous prime is 83621441. The next prime is 83621459. The reversal of 83621442 is 24412638.

It is not an unprimeable number, because it can be changed into a prime (83621441) 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, 240118 + ... + 240465.

It is an arithmetic number, because the mean of its divisors is an integer number (10813140).

Almost surely, 2^83621442 is an apocalyptic number.

83621442 is an abundant number, since it is smaller than the sum of its proper divisors (89388798).

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

83621442 is a wasteful number, since it uses less digits than its factorization.

83621442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480617.

The product of its digits is 9216, while the sum is 30.

The square root of 83621442 is about 9144.4760374775. The cubic root of 83621442 is about 437.2930255821.

The spelling of 83621442 in words is "eighty-three million, six hundred twenty-one thousand, four hundred forty-two".