7272090923 has 4 divisors (see below), whose sum is σ = 7272509088. Its totient is φ = 7271672760.

The previous prime is 7272090907. The next prime is 7272090967. The reversal of 7272090923 is 3290902727.

7272090923 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7272090923 - 2⁴ = 7272090907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7271090923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181811 + ... + 218172.

It is an arithmetic number, because the mean of its divisors is an integer number (1818127272).

Almost surely, 2^7272090923 is an apocalyptic number.

7272090923 is a deficient number, since it is larger than the sum of its proper divisors (418165).

7272090923 is a wasteful number, since it uses less digits than its factorization.

7272090923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418164.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 7272090923 is about 85276.5555296413. Note that the first 4 decimals coincide. The cubic root of 7272090923 is about 1937.4021026803.

The spelling of 7272090923 in words is "seven billion, two hundred seventy-two million, ninety thousand, nine hundred twenty-three".