87944386 has 4 divisors (see below), whose sum is σ = 131916582. Its totient is φ = 43972192.

The previous prime is 87944357. The next prime is 87944399. The reversal of 87944386 is 68344978.

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

It can be written as a sum of positive squares in only one way, i.e., 55965361 + 31979025 = 7481^2 + 5655^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21986095 + ... + 21986098.

Almost surely, 2^87944386 is an apocalyptic number.

87944386 is a deficient number, since it is larger than the sum of its proper divisors (43972196).

87944386 is a wasteful number, since it uses less digits than its factorization.

87944386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43972195.

The product of its digits is 1161216, while the sum is 49.

The square root of 87944386 is about 9377.8668150065. The cubic root of 87944386 is about 444.7022980433.

The spelling of 87944386 in words is "eighty-seven million, nine hundred forty-four thousand, three hundred eighty-six".