83881494 has 40 divisors (see below), whose sum is σ = 188867448. Its totient is φ = 27825120.

The previous prime is 83881493. The next prime is 83881507. The reversal of 83881494 is 49418838.

83881494 is a `hidden beast` number, since 83 + 8 + 81 + 494 = 666.

It is a super-2 number, since 2×83881494² = 14072210071344072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83881493) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35634 + ... + 37914.

Almost surely, 2^83881494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83881494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94433724).

83881494 is an abundant number, since it is smaller than the sum of its proper divisors (104985954).

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

83881494 is a wasteful number, since it uses less digits than its factorization.

83881494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2513 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 83881494 is about 9158.6840757829. The cubic root of 83881494 is about 437.7458649601.

The spelling of 83881494 in words is "eighty-three million, eight hundred eighty-one thousand, four hundred ninety-four".