83961258 has 16 divisors (see below), whose sum is σ = 168078240. Its totient is φ = 27961136.

The previous prime is 83961253. The next prime is 83961259. The reversal of 83961258 is 85216938.

It is not an unprimeable number, because it can be changed into a prime (83961253) 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, 1228 + ... + 13016.

It is an arithmetic number, because the mean of its divisors is an integer number (10504890).

Almost surely, 2^83961258 is an apocalyptic number.

83961258 is an abundant number, since it is smaller than the sum of its proper divisors (84116982).

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

83961258 is a wasteful number, since it uses less digits than its factorization.

83961258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981.

The product of its digits is 103680, while the sum is 42.

The square root of 83961258 is about 9163.0375967798. The cubic root of 83961258 is about 437.8845737419.

The spelling of 83961258 in words is "eighty-three million, nine hundred sixty-one thousand, two hundred fifty-eight".