64872850 has 48 divisors (see below), whose sum is σ = 146026368. Its totient is φ = 20931840.

The previous prime is 64872839. The next prime is 64872851. The reversal of 64872850 is 5827846.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64872851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499 + ... + 11401.

It is an arithmetic number, because the mean of its divisors is an integer number (3042216).

Almost surely, 2^64872850 is an apocalyptic number.

64872850 is an abundant number, since it is smaller than the sum of its proper divisors (81153518).

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

64872850 is a wasteful number, since it uses less digits than its factorization.

64872850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939 (or 10934 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 64872850 is about 8054.3683799538. The cubic root of 64872850 is about 401.8102327848.

The spelling of 64872850 in words is "sixty-four million, eight hundred seventy-two thousand, eight hundred fifty".