64352669 has 4 divisors (see below), whose sum is σ = 64369344. Its totient is φ = 64335996.

The previous prime is 64352663. The next prime is 64352699. The reversal of 64352669 is 96625346.

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.

It is a cyclic number.

It is not a de Polignac number, because 64352669 - 2²⁰ = 63304093 is a prime.

It is a super-2 number, since 2×64352669² = 8282532014847122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64352663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764 + ... + 11370.

It is an arithmetic number, because the mean of its divisors is an integer number (16092336).

Almost surely, 2^64352669 is an apocalyptic number.

It is an amenable number.

64352669 is a deficient number, since it is larger than the sum of its proper divisors (16675).

64352669 is a wasteful number, since it uses less digits than its factorization.

64352669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16674.

The product of its digits is 233280, while the sum is 41.

The square root of 64352669 is about 8022.0115307820. The cubic root of 64352669 is about 400.7333816400.

The spelling of 64352669 in words is "sixty-four million, three hundred fifty-two thousand, six hundred sixty-nine".