72873193 has 4 divisors (see below), whose sum is σ = 73899648. Its totient is φ = 71846740.

The previous prime is 72873179. The next prime is 72873197. The reversal of 72873193 is 39137827.

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.

It is a cyclic number.

It is not a de Polignac number, because 72873193 - 2⁵ = 72873161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72873197) 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, 513121 + ... + 513262.

It is an arithmetic number, because the mean of its divisors is an integer number (18474912).

Almost surely, 2^72873193 is an apocalyptic number.

It is an amenable number.

72873193 is a deficient number, since it is larger than the sum of its proper divisors (1026455).

72873193 is a wasteful number, since it uses less digits than its factorization.

72873193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026454.

The product of its digits is 63504, while the sum is 40.

The square root of 72873193 is about 8536.5797014964. The cubic root of 72873193 is about 417.6917841912.

The spelling of 72873193 in words is "seventy-two million, eight hundred seventy-three thousand, one hundred ninety-three".