83605684 has 6 divisors (see below), whose sum is σ = 146309954. Its totient is φ = 41802840.

The previous prime is 83605673. The next prime is 83605703. The reversal of 83605684 is 48650638.

It can be written as a sum of positive squares in only one way, i.e., 80640400 + 2965284 = 8980^2 + 1722^2 .

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, 10450707 + ... + 10450714.

Almost surely, 2^83605684 is an apocalyptic number.

It is an amenable number.

83605684 is a deficient number, since it is larger than the sum of its proper divisors (62704270).

83605684 is a wasteful number, since it uses less digits than its factorization.

83605684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20901425 (or 20901423 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 83605684 is about 9143.6143838200. The cubic root of 83605684 is about 437.2655553694.

The spelling of 83605684 in words is "eighty-three million, six hundred five thousand, six hundred eighty-four".