913791623 has 2 divisors, whose sum is σ = 913791624. Its totient is φ = 913791622.

The previous prime is 913791611. The next prime is 913791629. The reversal of 913791623 is 326197319.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 913791623 - 2⁴ = 913791607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (913791629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456895811 + 456895812.

It is an arithmetic number, because the mean of its divisors is an integer number (456895812).

Almost surely, 2^913791623 is an apocalyptic number.

913791623 is a deficient number, since it is larger than the sum of its proper divisors (1).

913791623 is an equidigital number, since it uses as much as digits as its factorization.

913791623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 913791623 is about 30228.9864699431. The cubic root of 913791623 is about 970.3961335938.

The spelling of 913791623 in words is "nine hundred thirteen million, seven hundred ninety-one thousand, six hundred twenty-three".