64774065 has 8 divisors (see below), whose sum is σ = 103638528. Its totient is φ = 34546160.

The previous prime is 64774057. The next prime is 64774067. The reversal of 64774065 is 56047746.

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

It is not a de Polignac number, because 64774065 - 2³ = 64774057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64774067) 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, 2159121 + ... + 2159150.

It is an arithmetic number, because the mean of its divisors is an integer number (12954816).

Almost surely, 2^64774065 is an apocalyptic number.

It is an amenable number.

64774065 is a deficient number, since it is larger than the sum of its proper divisors (38864463).

64774065 is a wasteful number, since it uses less digits than its factorization.

64774065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318279.

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 64774065 is about 8048.2336571449. The cubic root of 64774065 is about 401.6061772706.

The spelling of 64774065 in words is "sixty-four million, seven hundred seventy-four thousand, sixty-five".