64023943 has 2 divisors, whose sum is σ = 64023944. Its totient is φ = 64023942.

The previous prime is 64023937. The next prime is 64023961. The reversal of 64023943 is 34932046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64023943 - 2²¹ = 61926791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64023143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32011971 + 32011972.

It is an arithmetic number, because the mean of its divisors is an integer number (32011972).

Almost surely, 2^64023943 is an apocalyptic number.

64023943 is a deficient number, since it is larger than the sum of its proper divisors (1).

64023943 is an equidigital number, since it uses as much as digits as its factorization.

64023943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 64023943 is about 8001.4962975683. The cubic root of 64023943 is about 400.0498750309.

Adding to 64023943 its reverse (34932046), we get a palindrome (98955989).

The spelling of 64023943 in words is "sixty-four million, twenty-three thousand, nine hundred forty-three".