64324263 has 4 divisors (see below), whose sum is σ = 85765688. Its totient is φ = 42882840.

The previous prime is 64324237. The next prime is 64324283. The reversal of 64324263 is 36242346.

It is a happy number.

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

It is not a de Polignac number, because 64324263 - 2¹⁰ = 64323239 is a prime.

It is a super-2 number, since 2×64324263² = 8275221620986338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64324263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64324213) 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, 10720708 + ... + 10720713.

It is an arithmetic number, because the mean of its divisors is an integer number (21441422).

Almost surely, 2^64324263 is an apocalyptic number.

64324263 is a deficient number, since it is larger than the sum of its proper divisors (21441425).

64324263 is a wasteful number, since it uses less digits than its factorization.

64324263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21441424.

The product of its digits is 20736, while the sum is 30.

The square root of 64324263 is about 8020.2408317955. The cubic root of 64324263 is about 400.6744102048.

The spelling of 64324263 in words is "sixty-four million, three hundred twenty-four thousand, two hundred sixty-three".