64799222 has 4 divisors (see below), whose sum is σ = 97198836. Its totient is φ = 32399610.

The previous prime is 64799213. The next prime is 64799227. The reversal of 64799222 is 22299746.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64799222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64799227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16199804 + ... + 16199807.

It is an arithmetic number, because the mean of its divisors is an integer number (24299709).

Almost surely, 2^64799222 is an apocalyptic number.

64799222 is a deficient number, since it is larger than the sum of its proper divisors (32399614).

64799222 is a wasteful number, since it uses less digits than its factorization.

64799222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32399613.

The product of its digits is 108864, while the sum is 41.

The square root of 64799222 is about 8049.7963949407. The cubic root of 64799222 is about 401.6581625773.

The spelling of 64799222 in words is "sixty-four million, seven hundred ninety-nine thousand, two hundred twenty-two".