64293923 has 2 divisors, whose sum is σ = 64293924. Its totient is φ = 64293922.

The previous prime is 64293917. The next prime is 64293961. The reversal of 64293923 is 32939246.

It is an a-pointer prime, because the next prime (64293961) can be obtained adding 64293923 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64293923 - 2²² = 60099619 is a prime.

It is not a weakly prime, because it can be changed into another prime (64293973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32146961 + 32146962.

It is an arithmetic number, because the mean of its divisors is an integer number (32146962).

Almost surely, 2^64293923 is an apocalyptic number.

64293923 is a deficient number, since it is larger than the sum of its proper divisors (1).

64293923 is an equidigital number, since it uses as much as digits as its factorization.

64293923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 64293923 is about 8018.3491443065. The cubic root of 64293923 is about 400.6114045683.

The spelling of 64293923 in words is "sixty-four million, two hundred ninety-three thousand, nine hundred twenty-three".