67564969 has 8 divisors (see below), whose sum is σ = 71255840. Its totient is φ = 63887616.

The previous prime is 67564951. The next prime is 67564979. The reversal of 67564969 is 96946576.

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 67564969 - 2⁹ = 67564457 is a prime.

It is a super-2 number, since 2×67564969² = 9130050071941922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67564909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7882 + ... + 14044.

It is an arithmetic number, because the mean of its divisors is an integer number (8906980).

Almost surely, 2^67564969 is an apocalyptic number.

It is an amenable number.

67564969 is a deficient number, since it is larger than the sum of its proper divisors (3690871).

67564969 is a wasteful number, since it uses less digits than its factorization.

67564969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759.

The product of its digits is 2449440, while the sum is 52.

The square root of 67564969 is about 8219.7912990538. The cubic root of 67564969 is about 407.2932324509.

The spelling of 67564969 in words is "sixty-seven million, five hundred sixty-four thousand, nine hundred sixty-nine".