15772423 has 2 divisors, whose sum is σ = 15772424. Its totient is φ = 15772422.

The previous prime is 15772391. The next prime is 15772487. The reversal of 15772423 is 32427751.

15772423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (32427751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15772423 - 2⁵ = 15772391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15772123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7886211 + 7886212.

It is an arithmetic number, because the mean of its divisors is an integer number (7886212).

Almost surely, 2^15772423 is an apocalyptic number.

15772423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15772423 is an equidigital number, since it uses as much as digits as its factorization.

15772423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 15772423 is about 3971.4509942841. The cubic root of 15772423 is about 250.7837960867.

The spelling of 15772423 in words is "fifteen million, seven hundred seventy-two thousand, four hundred twenty-three".