64028567 has 2 divisors, whose sum is σ = 64028568. Its totient is φ = 64028566.

The previous prime is 64028563. The next prime is 64028597. The reversal of 64028567 is 76582046.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64028567 - 2² = 64028563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64028567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64028561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32014283 + 32014284.

It is an arithmetic number, because the mean of its divisors is an integer number (32014284).

Almost surely, 2^64028567 is an apocalyptic number.

64028567 is a deficient number, since it is larger than the sum of its proper divisors (1).

64028567 is an equidigital number, since it uses as much as digits as its factorization.

64028567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 64028567 is about 8001.7852383078. The cubic root of 64028567 is about 400.0595057306.

The spelling of 64028567 in words is "sixty-four million, twenty-eight thousand, five hundred sixty-seven".