83604312 has 160 divisors (see below), whose sum is σ = 263189520. Its totient is φ = 24572160.

The previous prime is 83604307. The next prime is 83604337. The reversal of 83604312 is 21340638.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 263578 + ... + 263894.

Almost surely, 2^83604312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83604312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131594760).

83604312 is an abundant number, since it is smaller than the sum of its proper divisors (179585208).

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

83604312 is a wasteful number, since it uses less digits than its factorization.

83604312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 83604312 is about 9143.5393584760. The cubic root of 83604312 is about 437.2631634601.

The spelling of 83604312 in words is "eighty-three million, six hundred four thousand, three hundred twelve".