64871862 has 32 divisors (see below), whose sum is σ = 141848064. Its totient is φ = 19615200.

The previous prime is 64871861. The next prime is 64871867. The reversal of 64871862 is 26817846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64871861) 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 15 ways as a sum of consecutive naturals, for example, 42883 + ... + 44369.

It is an arithmetic number, because the mean of its divisors is an integer number (4432752).

Almost surely, 2^64871862 is an apocalyptic number.

64871862 is an abundant number, since it is smaller than the sum of its proper divisors (76976202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64871862 is a wasteful number, since it uses less digits than its factorization.

64871862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164.

The product of its digits is 129024, while the sum is 42.

The square root of 64871862 is about 8054.3070465435. The cubic root of 64871862 is about 401.8081929457.

The spelling of 64871862 in words is "sixty-four million, eight hundred seventy-one thousand, eight hundred sixty-two".