72983623 has 8 divisors (see below), whose sum is σ = 76377600. Its totient is φ = 69608088.

The previous prime is 72983587. The next prime is 72983639. The reversal of 72983623 is 32638927.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72983623 is a prime.

It is a super-2 number, since 2×72983623² = 10653218452412258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72983723) 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, 3838 + ... + 12676.

It is an arithmetic number, because the mean of its divisors is an integer number (9547200).

Almost surely, 2^72983623 is an apocalyptic number.

72983623 is a deficient number, since it is larger than the sum of its proper divisors (3393977).

72983623 is a wasteful number, since it uses less digits than its factorization.

72983623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221.

The product of its digits is 108864, while the sum is 40.

The square root of 72983623 is about 8543.0453001257. The cubic root of 72983623 is about 417.9026638587.

The spelling of 72983623 in words is "seventy-two million, nine hundred eighty-three thousand, six hundred twenty-three".