69638923 has 2 divisors, whose sum is σ = 69638924. Its totient is φ = 69638922.

The previous prime is 69638903. The next prime is 69638941. The reversal of 69638923 is 32983696.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69638923 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (69638903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34819461 + 34819462.

It is an arithmetic number, because the mean of its divisors is an integer number (34819462).

Almost surely, 2^69638923 is an apocalyptic number.

69638923 is a deficient number, since it is larger than the sum of its proper divisors (1).

69638923 is an equidigital number, since it uses as much as digits as its factorization.

69638923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 69638923 is about 8344.9938885538. The cubic root of 69638923 is about 411.4186883844.

The spelling of 69638923 in words is "sixty-nine million, six hundred thirty-eight thousand, nine hundred twenty-three".