64769956 has 12 divisors (see below), whose sum is σ = 113823360. Its totient is φ = 32249000.

The previous prime is 64769953. The next prime is 64769959. The reversal of 64769956 is 65996746.

It is an interprime number because it is at equal distance from previous prime (64769953) and next prime (64769959).

It is not an unprimeable number, because it can be changed into a prime (64769953) 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, 32920 + ... + 34831.

It is an arithmetic number, because the mean of its divisors is an integer number (9485280).

Almost surely, 2^64769956 is an apocalyptic number.

It is an amenable number.

64769956 is a deficient number, since it is larger than the sum of its proper divisors (49053404).

64769956 is a wasteful number, since it uses less digits than its factorization.

64769956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67994 (or 67992 counting only the distinct ones).

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

The square root of 64769956 is about 8047.9783796926. The cubic root of 64769956 is about 401.5976850102.

The spelling of 64769956 in words is "sixty-four million, seven hundred sixty-nine thousand, nine hundred fifty-six".