83788444 has 12 divisors (see below), whose sum is σ = 155255184. Its totient is φ = 39429824.

The previous prime is 83788429. The next prime is 83788447. The reversal of 83788444 is 44488738.

It is a super-2 number, since 2×83788444² = 14041006695882272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83788394 and 83788403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83788447) 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, 616024 + ... + 616159.

It is an arithmetic number, because the mean of its divisors is an integer number (12937932).

Almost surely, 2^83788444 is an apocalyptic number.

It is an amenable number.

83788444 is a deficient number, since it is larger than the sum of its proper divisors (71466740).

83788444 is a wasteful number, since it uses less digits than its factorization.

83788444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232204 (or 1232202 counting only the distinct ones).

The product of its digits is 688128, while the sum is 46.

The square root of 83788444 is about 9153.6027879737. The cubic root of 83788444 is about 437.5839407917.

The spelling of 83788444 in words is "eighty-three million, seven hundred eighty-eight thousand, four hundred forty-four".