64985701 has 8 divisors (see below), whose sum is σ = 71557344. Its totient is φ = 58524720.

The previous prime is 64985689. The next prime is 64985707. The reversal of 64985701 is 10758946.

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

It is not a de Polignac number, because 64985701 - 2¹⁹ = 64461413 is a prime.

It is a super-3 number, since 3×64985701³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a pancake number, because a pancake can be divided into 64985701 parts by 11400 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64985707) 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, 26430 + ... + 28783.

It is an arithmetic number, because the mean of its divisors is an integer number (8944668).

Almost surely, 2^64985701 is an apocalyptic number.

It is an amenable number.

64985701 is a deficient number, since it is larger than the sum of its proper divisors (6571643).

64985701 is a wasteful number, since it uses less digits than its factorization.

64985701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55331.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 64985701 is about 8061.3709131884. The cubic root of 64985701 is about 402.0430904364.

The spelling of 64985701 in words is "sixty-four million, nine hundred eighty-five thousand, seven hundred one".