72803689 has 8 divisors (see below), whose sum is σ = 83381760. Its totient is φ = 62270016.

The previous prime is 72803681. The next prime is 72803711. The reversal of 72803689 is 98630827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72803689 - 2³ = 72803681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72803681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504 + ... + 14209.

It is an arithmetic number, because the mean of its divisors is an integer number (10422720).

Almost surely, 2^72803689 is an apocalyptic number.

It is an amenable number.

72803689 is a deficient number, since it is larger than the sum of its proper divisors (10578071).

72803689 is a wasteful number, since it uses less digits than its factorization.

72803689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22199.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 72803689 is about 8532.5077790764. The cubic root of 72803689 is about 417.5589484933.

The spelling of 72803689 in words is "seventy-two million, eight hundred three thousand, six hundred eighty-nine".