64296391 has 2 divisors, whose sum is σ = 64296392. Its totient is φ = 64296390.

The previous prime is 64296389. The next prime is 64296413. The reversal of 64296391 is 19369246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64296391 - 2¹ = 64296389 is a prime.

Together with 64296389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64296301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32148195 + 32148196.

It is an arithmetic number, because the mean of its divisors is an integer number (32148196).

Almost surely, 2^64296391 is an apocalyptic number.

64296391 is a deficient number, since it is larger than the sum of its proper divisors (1).

64296391 is an equidigital number, since it uses as much as digits as its factorization.

64296391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 64296391 is about 8018.5030398448. The cubic root of 64296391 is about 400.6165304872.

The spelling of 64296391 in words is "sixty-four million, two hundred ninety-six thousand, three hundred ninety-one".