72602873 has 4 divisors (see below), whose sum is σ = 82974720. Its totient is φ = 62231028.

The previous prime is 72602809. The next prime is 72602879. The reversal of 72602873 is 37820627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37820627 = 13 ⋅2909279.

It is a cyclic number.

It is not a de Polignac number, because 72602873 - 2⁶ = 72602809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72602879) 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, 5185913 + ... + 5185926.

It is an arithmetic number, because the mean of its divisors is an integer number (20743680).

Almost surely, 2^72602873 is an apocalyptic number.

It is an amenable number.

72602873 is a deficient number, since it is larger than the sum of its proper divisors (10371847).

72602873 is a wasteful number, since it uses less digits than its factorization.

72602873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371846.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 72602873 is about 8520.7319521271. The cubic root of 72602873 is about 417.1746743138.

The spelling of 72602873 in words is "seventy-two million, six hundred two thousand, eight hundred seventy-three".