83428736 has 32 divisors (see below), whose sum is σ = 166892400. Its totient is φ = 41542144.

The previous prime is 83428721. The next prime is 83428757. The reversal of 83428736 is 63782438.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 83428693 and 83428702.

It is a congruent number.

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, 33221 + ... + 35643.

Almost surely, 2^83428736 is an apocalyptic number.

It is an amenable number.

83428736 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

83428736 is a wasteful number, since it uses less digits than its factorization.

83428736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706 (or 2694 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 83428736 is about 9133.9332163094. The cubic root of 83428736 is about 436.9568526120.

The spelling of 83428736 in words is "eighty-three million, four hundred twenty-eight thousand, seven hundred thirty-six".