7272909923 has 2 divisors, whose sum is σ = 7272909924. Its totient is φ = 7272909922.

The previous prime is 7272909887. The next prime is 7272909949. The reversal of 7272909923 is 3299092727.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7272909923 - 2⁸ = 7272909667 is a prime.

It is not a weakly prime, because it can be changed into another prime (7272909223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3636454961 + 3636454962.

It is an arithmetic number, because the mean of its divisors is an integer number (3636454962).

Almost surely, 2^7272909923 is an apocalyptic number.

7272909923 is a deficient number, since it is larger than the sum of its proper divisors (1).

7272909923 is an equidigital number, since it uses as much as digits as its factorization.

7272909923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 7272909923 is about 85281.3574176678. The cubic root of 7272909923 is about 1937.4748315454.

The spelling of 7272909923 in words is "seven billion, two hundred seventy-two million, nine hundred nine thousand, nine hundred twenty-three".