64956017 has 6 divisors (see below), whose sum is σ = 75561138. Its totient is φ = 55676544.

The previous prime is 64956011. The next prime is 64956019. The reversal of 64956017 is 71065946.

It can be written as a sum of positive squares in only one way, i.e., 60155536 + 4800481 = 7756^2 + 2191^2 .

It is not a de Polignac number, because 64956017 - 2¹⁶ = 64890481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64956011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 662768 + ... + 662865.

It is an arithmetic number, because the mean of its divisors is an integer number (12593523).

Almost surely, 2^64956017 is an apocalyptic number.

It is an amenable number.

64956017 is a deficient number, since it is larger than the sum of its proper divisors (10605121).

64956017 is a wasteful number, since it uses less digits than its factorization.

64956017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325647 (or 1325640 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 64956017 is about 8059.5295768426. The cubic root of 64956017 is about 401.9818663800.

The spelling of 64956017 in words is "sixty-four million, nine hundred fifty-six thousand, seventeen".