72368287 has 4 divisors (see below), whose sum is σ = 72397800. Its totient is φ = 72338776.

The previous prime is 72368249. The next prime is 72368293. The reversal of 72368287 is 78286327.

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 72368287 - 2¹⁹ = 71843999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72368227) 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, 10708 + ... + 16105.

It is an arithmetic number, because the mean of its divisors is an integer number (18099450).

Almost surely, 2^72368287 is an apocalyptic number.

72368287 is a deficient number, since it is larger than the sum of its proper divisors (29513).

72368287 is a wasteful number, since it uses less digits than its factorization.

72368287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29512.

The product of its digits is 225792, while the sum is 43.

The square root of 72368287 is about 8506.9552132358. The cubic root of 72368287 is about 416.7248806841.

The spelling of 72368287 in words is "seventy-two million, three hundred sixty-eight thousand, two hundred eighty-seven".