72907043 has 8 divisors (see below), whose sum is σ = 80356080. Its totient is φ = 65594880.

The previous prime is 72907007. The next prime is 72907049. The reversal of 72907043 is 34070927.

It is a happy number.

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 72907043 - 2¹⁸ = 72644899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72907049) 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, 33098 + ... + 35231.

It is an arithmetic number, because the mean of its divisors is an integer number (10044510).

Almost surely, 2^72907043 is an apocalyptic number.

72907043 is a deficient number, since it is larger than the sum of its proper divisors (7449037).

72907043 is a wasteful number, since it uses less digits than its factorization.

72907043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68437.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 72907043 is about 8538.5621154853. The cubic root of 72907043 is about 417.7564475591.

The spelling of 72907043 in words is "seventy-two million, nine hundred seven thousand, forty-three".