72007423 has 2 divisors, whose sum is σ = 72007424. Its totient is φ = 72007422.

The previous prime is 72007417. The next prime is 72007433. The reversal of 72007423 is 32470027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72007423 - 2⁵ = 72007391 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72007433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36003711 + 36003712.

It is an arithmetic number, because the mean of its divisors is an integer number (36003712).

Almost surely, 2^72007423 is an apocalyptic number.

72007423 is a deficient number, since it is larger than the sum of its proper divisors (1).

72007423 is an equidigital number, since it uses as much as digits as its factorization.

72007423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 72007423 is about 8485.7187674351. The cubic root of 72007423 is about 416.0310608434.

The spelling of 72007423 in words is "seventy-two million, seven thousand, four hundred twenty-three".