73072453 has 8 divisors (see below), whose sum is σ = 74114208. Its totient is φ = 72034704.

The previous prime is 73072427. The next prime is 73072457. The reversal of 73072453 is 35427037.

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

It is not a de Polignac number, because 73072453 - 2⁵ = 73072421 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 (73072457) 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, 62250 + ... + 63412.

It is an arithmetic number, because the mean of its divisors is an integer number (9264276).

Almost surely, 2^73072453 is an apocalyptic number.

It is an amenable number.

73072453 is a deficient number, since it is larger than the sum of its proper divisors (1041755).

73072453 is a wasteful number, since it uses less digits than its factorization.

73072453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 73072453 is about 8548.2426849031. The cubic root of 73072453 is about 418.0721413455.

The spelling of 73072453 in words is "seventy-three million, seventy-two thousand, four hundred fifty-three".