39887222 has 4 divisors (see below), whose sum is σ = 59830836. Its totient is φ = 19943610.

The previous prime is 39887203. The next prime is 39887231. The reversal of 39887222 is 22278893.

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 39887222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9971804 + ... + 9971807.

It is an arithmetic number, because the mean of its divisors is an integer number (14957709).

Almost surely, 2^39887222 is an apocalyptic number.

39887222 is a deficient number, since it is larger than the sum of its proper divisors (19943614).

39887222 is a wasteful number, since it uses less digits than its factorization.

39887222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19943613.

The product of its digits is 96768, while the sum is 41.

The square root of 39887222 is about 6315.6331432407. The cubic root of 39887222 is about 341.6734740134.

The spelling of 39887222 in words is "thirty-nine million, eight hundred eighty-seven thousand, two hundred twenty-two".