73696644 has 72 divisors (see below), whose sum is σ = 214934720. Its totient is φ = 20855232.

The previous prime is 73696633. The next prime is 73696657. The reversal of 73696644 is 44669637.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 73696644.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26127 + ... + 28809.

Almost surely, 2^73696644 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 73696644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107467360).

73696644 is an abundant number, since it is smaller than the sum of its proper divisors (141238076).

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

73696644 is a wasteful number, since it uses less digits than its factorization.

73696644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2804 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 73696644 is about 8584.6749501656. The cubic root of 73696644 is about 419.2591702236.

The spelling of 73696644 in words is "seventy-three million, six hundred ninety-six thousand, six hundred forty-four".