64827812 has 24 divisors (see below), whose sum is σ = 130490304. Its totient is φ = 27604512.

The previous prime is 64827809. The next prime is 64827821. The reversal of 64827812 is 21872846.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978 + ... + 11769.

It is an arithmetic number, because the mean of its divisors is an integer number (5437096).

Almost surely, 2^64827812 is an apocalyptic number.

It is an amenable number.

64827812 is an abundant number, since it is smaller than the sum of its proper divisors (65662492).

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

64827812 is a wasteful number, since it uses less digits than its factorization.

64827812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14915 (or 14913 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 64827812 is about 8051.5720204194. The cubic root of 64827812 is about 401.7172256240.

The spelling of 64827812 in words is "sixty-four million, eight hundred twenty-seven thousand, eight hundred twelve".