83604738 has 64 divisors (see below), whose sum is σ = 200309760. Its totient is φ = 22757952.

The previous prime is 83604733. The next prime is 83604739. The reversal of 83604738 is 83740638.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83604696 and 83604705.

It is not an unprimeable number, because it can be changed into a prime (83604733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100681 + ... + 101507.

It is an arithmetic number, because the mean of its divisors is an integer number (3129840).

Almost surely, 2^83604738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83604738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100154880).

83604738 is an abundant number, since it is smaller than the sum of its proper divisors (116705022).

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

83604738 is a wasteful number, since it uses less digits than its factorization.

83604738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 83604738 is about 9143.5626535831. The cubic root of 83604738 is about 437.2639061403.

The spelling of 83604738 in words is "eighty-three million, six hundred four thousand, seven hundred thirty-eight".