64851007 has 16 divisors (see below), whose sum is σ = 73725120. Its totient is φ = 56593152.

The previous prime is 64851001. The next prime is 64851011. The reversal of 64851007 is 70015846.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64851007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64851007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64851001) 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 15 ways as a sum of consecutive naturals, for example, 25393 + ... + 27829.

It is an arithmetic number, because the mean of its divisors is an integer number (4607820).

Almost surely, 2^64851007 is an apocalyptic number.

64851007 is a deficient number, since it is larger than the sum of its proper divisors (8874113).

64851007 is a wasteful number, since it uses less digits than its factorization.

64851007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 64851007 is about 8053.0122935458. The cubic root of 64851007 is about 401.7651305776.

The spelling of 64851007 in words is "sixty-four million, eight hundred fifty-one thousand, seven".