64298263 has 4 divisors (see below), whose sum is σ = 64537560. Its totient is φ = 64058968.

The previous prime is 64298237. The next prime is 64298279. The reversal of 64298263 is 36289246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64298263 - 2⁵ = 64298231 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64293263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119245 + ... + 119782.

It is an arithmetic number, because the mean of its divisors is an integer number (16134390).

Almost surely, 2^64298263 is an apocalyptic number.

64298263 is a deficient number, since it is larger than the sum of its proper divisors (239297).

64298263 is a wasteful number, since it uses less digits than its factorization.

64298263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239296.

The product of its digits is 124416, while the sum is 40.

The square root of 64298263 is about 8018.6197690126. The cubic root of 64298263 is about 400.6204184548.

The spelling of 64298263 in words is "sixty-four million, two hundred ninety-eight thousand, two hundred sixty-three".