72028453 has 8 divisors (see below), whose sum is σ = 83134080. Its totient is φ = 61126800.

The previous prime is 72028427. The next prime is 72028457. The reversal of 72028453 is 35482027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72028453 - 2⁵ = 72028421 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 (72028457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50233 + ... + 51646.

It is an arithmetic number, because the mean of its divisors is an integer number (10391760).

Almost surely, 2^72028453 is an apocalyptic number.

It is an amenable number.

72028453 is a deficient number, since it is larger than the sum of its proper divisors (11105627).

72028453 is a wasteful number, since it uses less digits than its factorization.

72028453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101987.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 72028453 is about 8486.9578177342. The cubic root of 72028453 is about 416.0715579720.

The spelling of 72028453 in words is "seventy-two million, twenty-eight thousand, four hundred fifty-three".