83784464 has 20 divisors (see below), whose sum is σ = 163412160. Its totient is φ = 41613600.

The previous prime is 83784457. The next prime is 83784479. The reversal of 83784464 is 46448738.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14924 + ... + 19755.

It is an arithmetic number, because the mean of its divisors is an integer number (8170608).

Almost surely, 2^83784464 is an apocalyptic number.

It is an amenable number.

83784464 is a deficient number, since it is larger than the sum of its proper divisors (79627696).

83784464 is a wasteful number, since it uses less digits than its factorization.

83784464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34838 (or 34832 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The square root of 83784464 is about 9153.3853846541. The cubic root of 83784464 is about 437.5770121844.

It can be divided in two parts, 83784 and 464, that added together give a palindrome (84248).

The spelling of 83784464 in words is "eighty-three million, seven hundred eighty-four thousand, four hundred sixty-four".