73253623 has 6 divisors (see below), whose sum is σ = 75867584. Its totient is φ = 70726824.

The previous prime is 73253617. The next prime is 73253647. The reversal of 73253623 is 32635237.

It is not a de Polignac number, because 73253623 - 2¹⁷ = 73122551 is a prime.

It is a super-2 number, since 2×73253623² = 10732186565252258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73253603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42711 + ... + 44392.

Almost surely, 2^73253623 is an apocalyptic number.

73253623 is a deficient number, since it is larger than the sum of its proper divisors (2613961).

73253623 is an equidigital number, since it uses as much as digits as its factorization.

73253623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87161 (or 87132 counting only the distinct ones).

The product of its digits is 22680, while the sum is 31.

The square root of 73253623 is about 8558.8330396147. The cubic root of 73253623 is about 418.4173677452.

The spelling of 73253623 in words is "seventy-three million, two hundred fifty-three thousand, six hundred twenty-three".