72633683 has 4 divisors (see below), whose sum is σ = 72651600. Its totient is φ = 72615768.

The previous prime is 72633679. The next prime is 72633689. The reversal of 72633683 is 38633627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72633683 - 2² = 72633679 is a prime.

It is a super-2 number, since 2×72633683² = 10551303812288978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72633689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341 + ... + 12057.

It is an arithmetic number, because the mean of its divisors is an integer number (18162900).

Almost surely, 2^72633683 is an apocalyptic number.

72633683 is a deficient number, since it is larger than the sum of its proper divisors (17917).

72633683 is a wasteful number, since it uses less digits than its factorization.

72633683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17916.

The product of its digits is 108864, while the sum is 38.

The square root of 72633683 is about 8522.5397036329. The cubic root of 72633683 is about 417.2336771855.

The spelling of 72633683 in words is "seventy-two million, six hundred thirty-three thousand, six hundred eighty-three".