64650469 has 8 divisors (see below), whose sum is σ = 71869952. Its totient is φ = 57751920.

The previous prime is 64650449. The next prime is 64650491. The reversal of 64650469 is 96405646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64650469 - 2¹¹ = 64648421 is a prime.

It is a super-2 number, since 2×64650469² = 8359366283839922, 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 (64650409) 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 7 ways as a sum of consecutive naturals, for example, 79809 + ... + 80614.

It is an arithmetic number, because the mean of its divisors is an integer number (8983744).

Almost surely, 2^64650469 is an apocalyptic number.

It is an amenable number.

64650469 is a deficient number, since it is larger than the sum of its proper divisors (7219483).

64650469 is a wasteful number, since it uses less digits than its factorization.

64650469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160467.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 64650469 is about 8040.5515358090. The cubic root of 64650469 is about 401.3505784622.

It can be divided in two parts, 646 and 50469, that added together give a palindrome (51115).

The spelling of 64650469 in words is "sixty-four million, six hundred fifty thousand, four hundred sixty-nine".