64351895 has 8 divisors (see below), whose sum is σ = 78090480. Its totient is φ = 50902720.

The previous prime is 64351873. The next prime is 64351897. The reversal of 64351895 is 59815346.

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

It is not a de Polignac number, because 64351895 - 2¹² = 64347799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64351897) 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, 71861 + ... + 72750.

It is an arithmetic number, because the mean of its divisors is an integer number (9761310).

Almost surely, 2^64351895 is an apocalyptic number.

64351895 is a deficient number, since it is larger than the sum of its proper divisors (13738585).

64351895 is a wasteful number, since it uses less digits than its factorization.

64351895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144705.

The product of its digits is 129600, while the sum is 41.

The square root of 64351895 is about 8021.9632883727. The cubic root of 64351895 is about 400.7317750302.

The spelling of 64351895 in words is "sixty-four million, three hundred fifty-one thousand, eight hundred ninety-five".