72050623 has 4 divisors (see below), whose sum is σ = 73271880. Its totient is φ = 70829368.

The previous prime is 72050617. The next prime is 72050639. The reversal of 72050623 is 32605027.

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 72050623 - 2⁵ = 72050591 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 (72050023) 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 3 ways as a sum of consecutive naturals, for example, 610540 + ... + 610657.

It is an arithmetic number, because the mean of its divisors is an integer number (18317970).

Almost surely, 2^72050623 is an apocalyptic number.

72050623 is a deficient number, since it is larger than the sum of its proper divisors (1221257).

72050623 is a wasteful number, since it uses less digits than its factorization.

72050623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221256.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 72050623 is about 8488.2638389720. The cubic root of 72050623 is about 416.1142418458.

The spelling of 72050623 in words is "seventy-two million, fifty thousand, six hundred twenty-three".