83644732 has 6 divisors (see below), whose sum is σ = 146378288. Its totient is φ = 41822364.

The previous prime is 83644723. The next prime is 83644793. The reversal of 83644732 is 23744638.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 83644691 and 83644700.

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, 10455588 + ... + 10455595.

Almost surely, 2^83644732 is an apocalyptic number.

It is an amenable number.

83644732 is a deficient number, since it is larger than the sum of its proper divisors (62733556).

83644732 is a wasteful number, since it uses less digits than its factorization.

83644732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911187 (or 20911185 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 83644732 is about 9145.7493952109. The cubic root of 83644732 is about 437.3336196727. Note that the first 3 decimals are identical.

The spelling of 83644732 in words is "eighty-three million, six hundred forty-four thousand, seven hundred thirty-two".