72365299 has 4 divisors (see below), whose sum is σ = 73730736. Its totient is φ = 70999864.

The previous prime is 72365273. The next prime is 72365309. The reversal of 72365299 is 99256327.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99256327 = 31 ⋅3201817.

It is a cyclic number.

It is not a de Polignac number, because 72365299 - 2¹¹ = 72363251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72365219) 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, 682639 + ... + 682744.

It is an arithmetic number, because the mean of its divisors is an integer number (18432684).

Almost surely, 2^72365299 is an apocalyptic number.

72365299 is a deficient number, since it is larger than the sum of its proper divisors (1365437).

72365299 is a wasteful number, since it uses less digits than its factorization.

72365299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365436.

The product of its digits is 204120, while the sum is 43.

The square root of 72365299 is about 8506.7795904208. The cubic root of 72365299 is about 416.7191452479.

The spelling of 72365299 in words is "seventy-two million, three hundred sixty-five thousand, two hundred ninety-nine".