72250623 has 10 divisors (see below), whose sum is σ = 107930064. Its totient is φ = 48167028.

The previous prime is 72250583. The next prime is 72250627. The reversal of 72250623 is 32605227.

It is not a de Polignac number, because 72250623 - 2²¹ = 70153471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72250627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 445911 + ... + 446072.

Almost surely, 2^72250623 is an apocalyptic number.

72250623 is a deficient number, since it is larger than the sum of its proper divisors (35679441).

72250623 is an equidigital number, since it uses as much as digits as its factorization.

72250623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891995 (or 891986 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 72250623 is about 8500.0366469798. The cubic root of 72250623 is about 416.4989064024.

The spelling of 72250623 in words is "seventy-two million, two hundred fifty thousand, six hundred twenty-three".