64308469 has 4 divisors (see below), whose sum is σ = 64494144. Its totient is φ = 64122796.

The previous prime is 64308403. The next prime is 64308473. The reversal of 64308469 is 96480346.

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 64308469 - 2¹¹ = 64306421 is a prime.

It is a super-2 number, since 2×64308469² = 8271158370247922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64308499) 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, 92317 + ... + 93010.

It is an arithmetic number, because the mean of its divisors is an integer number (16123536).

Almost surely, 2^64308469 is an apocalyptic number.

It is an amenable number.

64308469 is a deficient number, since it is larger than the sum of its proper divisors (185675).

64308469 is a wasteful number, since it uses less digits than its factorization.

64308469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185674.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 64308469 is about 8019.2561375729. The cubic root of 64308469 is about 400.6416140283.

The spelling of 64308469 in words is "sixty-four million, three hundred eight thousand, four hundred sixty-nine".