83864456 has 16 divisors (see below), whose sum is σ = 169341900. Its totient is φ = 38706624.

The previous prime is 83864453. The next prime is 83864467. The reversal of 83864456 is 65446838.

It can be written as a sum of positive squares in 2 ways, for example, as 82992100 + 872356 = 9110^2 + 934^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83864453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403091 + ... + 403298.

Almost surely, 2^83864456 is an apocalyptic number.

It is an amenable number.

83864456 is an abundant number, since it is smaller than the sum of its proper divisors (85477444).

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

83864456 is a wasteful number, since it uses less digits than its factorization.

83864456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806408 (or 806404 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The square root of 83864456 is about 9157.7538730848. The cubic root of 83864456 is about 437.7162246556.

The spelling of 83864456 in words is "eighty-three million, eight hundred sixty-four thousand, four hundred fifty-six".