64378695 has 16 divisors (see below), whose sum is σ = 106558560. Its totient is φ = 33151104.

The previous prime is 64378693. The next prime is 64378703. The reversal of 64378695 is 59687346.

It is not a de Polignac number, because 64378695 - 2¹ = 64378693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64378693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73564 + ... + 74433.

It is an arithmetic number, because the mean of its divisors is an integer number (6659910).

Almost surely, 2^64378695 is an apocalyptic number.

64378695 is a deficient number, since it is larger than the sum of its proper divisors (42179865).

64378695 is a wasteful number, since it uses less digits than its factorization.

64378695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148034.

The product of its digits is 1088640, while the sum is 48.

The square root of 64378695 is about 8023.6335285206. The cubic root of 64378695 is about 400.7873969149.

The spelling of 64378695 in words is "sixty-four million, three hundred seventy-eight thousand, six hundred ninety-five".