72635943 has 8 divisors (see below), whose sum is σ = 96918768. Its totient is φ = 48388544.

The previous prime is 72635939. The next prime is 72635947. The reversal of 72635943 is 34953627.

It is an interprime number because it is at equal distance from previous prime (72635939) and next prime (72635947).

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 72635943 - 2² = 72635939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72635947) 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, 3630 + ... + 12587.

It is an arithmetic number, because the mean of its divisors is an integer number (12114846).

Almost surely, 2^72635943 is an apocalyptic number.

72635943 is a deficient number, since it is larger than the sum of its proper divisors (24282825).

72635943 is a wasteful number, since it uses less digits than its factorization.

72635943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17713.

The product of its digits is 136080, while the sum is 39.

The square root of 72635943 is about 8522.6722921863. The cubic root of 72635943 is about 417.2380045549.

The spelling of 72635943 in words is "seventy-two million, six hundred thirty-five thousand, nine hundred forty-three".