64653829 has 2 divisors, whose sum is σ = 64653830. Its totient is φ = 64653828.

The previous prime is 64653803. The next prime is 64653833. The reversal of 64653829 is 92835646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40985604 + 23668225 = 6402^2 + 4865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64653829 is a prime.

It is a super-2 number, since 2×64653829² = 8360235208722482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64653859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32326914 + 32326915.

It is an arithmetic number, because the mean of its divisors is an integer number (32326915).

Almost surely, 2^64653829 is an apocalyptic number.

It is an amenable number.

64653829 is a deficient number, since it is larger than the sum of its proper divisors (1).

64653829 is an equidigital number, since it uses as much as digits as its factorization.

64653829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 64653829 is about 8040.7604739850. The cubic root of 64653829 is about 401.3575313098.

The spelling of 64653829 in words is "sixty-four million, six hundred fifty-three thousand, eight hundred twenty-nine".