64802653 has 4 divisors (see below), whose sum is σ = 64819260. Its totient is φ = 64786048.

The previous prime is 64802641. The next prime is 64802701. The reversal of 64802653 is 35620846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35620846 = 2 ⋅17810423.

It can be written as a sum of positive squares in 2 ways, for example, as 9998244 + 54804409 = 3162^2 + 7403^2 .

It is a cyclic number.

It is not a de Polignac number, because 64802653 - 2²⁵ = 31248221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64802053) 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, 1101 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (16204815).

Almost surely, 2^64802653 is an apocalyptic number.

It is an amenable number.

64802653 is a deficient number, since it is larger than the sum of its proper divisors (16607).

64802653 is a wasteful number, since it uses less digits than its factorization.

64802653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16606.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 64802653 is about 8050.0095031000. The cubic root of 64802653 is about 401.6652514733.

The spelling of 64802653 in words is "sixty-four million, eight hundred two thousand, six hundred fifty-three".