64023247 has 2 divisors, whose sum is σ = 64023248. Its totient is φ = 64023246.

The previous prime is 64023229. The next prime is 64023299. The reversal of 64023247 is 74232046.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64023247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64023347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32011623 + 32011624.

It is an arithmetic number, because the mean of its divisors is an integer number (32011624).

Almost surely, 2^64023247 is an apocalyptic number.

64023247 is a deficient number, since it is larger than the sum of its proper divisors (1).

64023247 is an equidigital number, since it uses as much as digits as its factorization.

64023247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 64023247 is about 8001.4528055847. The cubic root of 64023247 is about 400.0484253872.

The spelling of 64023247 in words is "sixty-four million, twenty-three thousand, two hundred forty-seven".