64288633 has 4 divisors (see below), whose sum is σ = 64458640. Its totient is φ = 64118628.

The previous prime is 64288613. The next prime is 64288639. The reversal of 64288633 is 33688246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33688246 = 2 ⋅16844123.

It is a cyclic number.

It is not a de Polignac number, because 64288633 - 2²⁵ = 30734201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64288639) 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, 84435 + ... + 85192.

It is an arithmetic number, because the mean of its divisors is an integer number (16114660).

Almost surely, 2^64288633 is an apocalyptic number.

It is an amenable number.

64288633 is a deficient number, since it is larger than the sum of its proper divisors (170007).

64288633 is a wasteful number, since it uses less digits than its factorization.

64288633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170006.

The product of its digits is 165888, while the sum is 40.

The square root of 64288633 is about 8018.0192691213. The cubic root of 64288633 is about 400.6004170475.

The spelling of 64288633 in words is "sixty-four million, two hundred eighty-eight thousand, six hundred thirty-three".