1987226 has 8 divisors (see below), whose sum is σ = 2992224. Its totient is φ = 989820.

The previous prime is 1987217. The next prime is 1987231. The reversal of 1987226 is 6227891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1190 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (374028).

2^1987226 is an apocalyptic number.

1987226 is a deficient number, since it is larger than the sum of its proper divisors (1004998).

1987226 is a wasteful number, since it uses less digits than its factorization.

1987226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796.

The product of its digits is 12096, while the sum is 35.

The square root of 1987226 is about 1409.6900368521. The cubic root of 1987226 is about 125.7232946859.

The spelling of 1987226 in words is "one million, nine hundred eighty-seven thousand, two hundred twenty-six".