64689001 has 8 divisors (see below), whose sum is σ = 69781824. Its totient is φ = 59612880.

The previous prime is 64688999. The next prime is 64689007. The reversal of 64689001 is 10098646.

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

It is a cyclic number.

It is not a de Polignac number, because 64689001 - 2¹ = 64688999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64689007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 12256.

It is an arithmetic number, because the mean of its divisors is an integer number (8722728).

Almost surely, 2^64689001 is an apocalyptic number.

It is an amenable number.

64689001 is a deficient number, since it is larger than the sum of its proper divisors (5092823).

64689001 is a wasteful number, since it uses less digits than its factorization.

64689001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8351.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 64689001 is about 8042.9472831792. The cubic root of 64689001 is about 401.4302982712.

The spelling of 64689001 in words is "sixty-four million, six hundred eighty-nine thousand, one".