64822969 has 4 divisors (see below), whose sum is σ = 65790544. Its totient is φ = 63855396.

The previous prime is 64822963. The next prime is 64822987. The reversal of 64822969 is 96922846.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96922846 = 2 ⋅48461423.

It is a cyclic number.

It is not a de Polignac number, because 64822969 - 2⁵ = 64822937 is a prime.

It is a super-2 number, since 2×64822969² = 8404034619949922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64822963) 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, 483687 + ... + 483820.

It is an arithmetic number, because the mean of its divisors is an integer number (16447636).

Almost surely, 2^64822969 is an apocalyptic number.

It is an amenable number.

64822969 is a deficient number, since it is larger than the sum of its proper divisors (967575).

64822969 is an equidigital number, since it uses as much as digits as its factorization.

64822969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967574.

The product of its digits is 373248, while the sum is 46.

The square root of 64822969 is about 8051.2712660797. The cubic root of 64822969 is about 401.7072218673.

The spelling of 64822969 in words is "sixty-four million, eight hundred twenty-two thousand, nine hundred sixty-nine".