64911383 has 2 divisors, whose sum is σ = 64911384. Its totient is φ = 64911382.

The previous prime is 64911373. The next prime is 64911421. The reversal of 64911383 is 38311946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64911383 - 2⁸ = 64911127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64911373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32455691 + 32455692.

It is an arithmetic number, because the mean of its divisors is an integer number (32455692).

Almost surely, 2^64911383 is an apocalyptic number.

64911383 is a deficient number, since it is larger than the sum of its proper divisors (1).

64911383 is an equidigital number, since it uses as much as digits as its factorization.

64911383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 64911383 is about 8056.7600808265. The cubic root of 64911383 is about 401.8897724237.

The spelling of 64911383 in words is "sixty-four million, nine hundred eleven thousand, three hundred eighty-three".