64871674 has 16 divisors (see below), whose sum is σ = 111313728. Its totient is φ = 27775872.

The previous prime is 64871671. The next prime is 64871687. The reversal of 64871674 is 47617846.

It is a self number, because there is not a number n which added to its sum of digits gives 64871674.

It is not an unprimeable number, because it can be changed into a prime (64871671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23722 + ... + 26314.

It is an arithmetic number, because the mean of its divisors is an integer number (6957108).

Almost surely, 2^64871674 is an apocalyptic number.

64871674 is a deficient number, since it is larger than the sum of its proper divisors (46442054).

64871674 is a wasteful number, since it uses less digits than its factorization.

64871674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389.

The product of its digits is 225792, while the sum is 43.

The square root of 64871674 is about 8054.2953757607. The cubic root of 64871674 is about 401.8078047958.

The spelling of 64871674 in words is "sixty-four million, eight hundred seventy-one thousand, six hundred seventy-four".