64345783 has 2 divisors, whose sum is σ = 64345784. Its totient is φ = 64345782.

The previous prime is 64345753. The next prime is 64345807. The reversal of 64345783 is 38754346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64345783 - 2⁹ = 64345271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64345733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32172891 + 32172892.

It is an arithmetic number, because the mean of its divisors is an integer number (32172892).

Almost surely, 2^64345783 is an apocalyptic number.

64345783 is a deficient number, since it is larger than the sum of its proper divisors (1).

64345783 is an equidigital number, since it uses as much as digits as its factorization.

64345783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 64345783 is about 8021.5823252024. The cubic root of 64345783 is about 400.7190877573.

The spelling of 64345783 in words is "sixty-four million, three hundred forty-five thousand, seven hundred eighty-three".