72453379 has 4 divisors (see below), whose sum is σ = 72501184. Its totient is φ = 72405576.

The previous prime is 72453361. The next prime is 72453383. The reversal of 72453379 is 97335427.

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 72453379 - 2⁵ = 72453347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72453319) 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, 21552 + ... + 24685.

It is an arithmetic number, because the mean of its divisors is an integer number (18125296).

Almost surely, 2^72453379 is an apocalyptic number.

72453379 is a deficient number, since it is larger than the sum of its proper divisors (47805).

72453379 is a wasteful number, since it uses less digits than its factorization.

72453379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47804.

The product of its digits is 158760, while the sum is 40.

The square root of 72453379 is about 8511.9550633212. The cubic root of 72453379 is about 416.8881477077. Note that the first 3 decimals are identical.

The spelling of 72453379 in words is "seventy-two million, four hundred fifty-three thousand, three hundred seventy-nine".