64297199 has 2 divisors, whose sum is σ = 64297200. Its totient is φ = 64297198.

The previous prime is 64297141. The next prime is 64297201. The reversal of 64297199 is 99179246.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64297199 is a prime.

Together with 64297201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64297139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32148599 + 32148600.

It is an arithmetic number, because the mean of its divisors is an integer number (32148600).

Almost surely, 2^64297199 is an apocalyptic number.

64297199 is a deficient number, since it is larger than the sum of its proper divisors (1).

64297199 is an equidigital number, since it uses as much as digits as its factorization.

64297199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 64297199 is about 8018.5534231556. The cubic root of 64297199 is about 400.6182086363.

The spelling of 64297199 in words is "sixty-four million, two hundred ninety-seven thousand, one hundred ninety-nine".