83389144 has 8 divisors (see below), whose sum is σ = 156354660. Its totient is φ = 41694568.

The previous prime is 83389129. The next prime is 83389151. The reversal of 83389144 is 44198338.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 83389097 and 83389106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5211814 + ... + 5211829.

Almost surely, 2^83389144 is an apocalyptic number.

It is an amenable number.

83389144 is a deficient number, since it is larger than the sum of its proper divisors (72965516).

83389144 is a wasteful number, since it uses less digits than its factorization.

83389144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423649 (or 10423645 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 83389144 is about 9131.7656562135. The cubic root of 83389144 is about 436.8877208241.

The spelling of 83389144 in words is "eighty-three million, three hundred eighty-nine thousand, one hundred forty-four".