64478846 has 16 divisors (see below), whose sum is σ = 98883504. Its totient is φ = 31521984.

The previous prime is 64478839. The next prime is 64478849. The reversal of 64478846 is 64887446.

It is a self number, because there is not a number n which added to its sum of digits gives 64478846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64478849) 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, 35906 + ... + 37658.

It is an arithmetic number, because the mean of its divisors is an integer number (6180219).

Almost surely, 2^64478846 is an apocalyptic number.

64478846 is a deficient number, since it is larger than the sum of its proper divisors (34404658).

64478846 is a wasteful number, since it uses less digits than its factorization.

64478846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

The product of its digits is 1032192, while the sum is 47.

The square root of 64478846 is about 8029.8721035892. The cubic root of 64478846 is about 400.9951181301.

The spelling of 64478846 in words is "sixty-four million, four hundred seventy-eight thousand, eight hundred forty-six".