64676069 has 12 divisors (see below), whose sum is σ = 68324256. Its totient is φ = 61211832.

The previous prime is 64676063. The next prime is 64676071. The reversal of 64676069 is 96067646.

It is not a de Polignac number, because 64676069 - 2¹² = 64671973 is a prime.

It is a super-2 number, since 2×64676069² = 8365987802585522, 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 (64676063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53894 + ... + 55080.

It is an arithmetic number, because the mean of its divisors is an integer number (5693688).

Almost surely, 2^64676069 is an apocalyptic number.

It is an amenable number.

64676069 is a deficient number, since it is larger than the sum of its proper divisors (3648187).

64676069 is a wasteful number, since it uses less digits than its factorization.

64676069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336 (or 1313 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 64676069 is about 8042.1433088450. The cubic root of 64676069 is about 401.4035464664.

The spelling of 64676069 in words is "sixty-four million, six hundred seventy-six thousand, sixty-nine".