64827822 has 16 divisors (see below), whose sum is σ = 129837312. Its totient is φ = 21579000.

The previous prime is 64827821. The next prime is 64827827. The reversal of 64827822 is 22872846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64827821) 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, 2688 + ... + 11699.

It is an arithmetic number, because the mean of its divisors is an integer number (8114832).

Almost surely, 2^64827822 is an apocalyptic number.

64827822 is an abundant number, since it is smaller than the sum of its proper divisors (65009490).

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

64827822 is a wasteful number, since it uses less digits than its factorization.

64827822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143.

The product of its digits is 86016, while the sum is 39.

The square root of 64827822 is about 8051.5726414161. The cubic root of 64827822 is about 401.7172462796.

The spelling of 64827822 in words is "sixty-four million, eight hundred twenty-seven thousand, eight hundred twenty-two".