83645632 has 28 divisors (see below), whose sum is σ = 189697360. Its totient is φ = 35847936.

The previous prime is 83645591. The next prime is 83645647. The reversal of 83645632 is 23654638.

It is a tau number, because it is divible by the number of its divisors (28).

It is a junction number, because it is equal to n+sod(n) for n = 83645591 and 83645600.

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, 92907 + ... + 93802.

Almost surely, 2^83645632 is an apocalyptic number.

It is an amenable number.

83645632 is an abundant number, since it is smaller than the sum of its proper divisors (106051728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83645632 is a wasteful number, since it uses less digits than its factorization.

83645632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186728 (or 186718 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 83645632 is about 9145.7985982636. The cubic root of 83645632 is about 437.3351882068.

The spelling of 83645632 in words is "eighty-three million, six hundred forty-five thousand, six hundred thirty-two".