72323711 has 2 divisors, whose sum is σ = 72323712. Its totient is φ = 72323710.

The previous prime is 72323689. The next prime is 72323717. The reversal of 72323711 is 11732327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72323711 - 2²² = 68129407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72323717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36161855 + 36161856.

It is an arithmetic number, because the mean of its divisors is an integer number (36161856).

Almost surely, 2^72323711 is an apocalyptic number.

72323711 is a deficient number, since it is larger than the sum of its proper divisors (1).

72323711 is an equidigital number, since it uses as much as digits as its factorization.

72323711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 26.

The square root of 72323711 is about 8504.3348358352. The cubic root of 72323711 is about 416.6393011005.

The spelling of 72323711 in words is "seventy-two million, three hundred twenty-three thousand, seven hundred eleven".