87669398 has 16 divisors (see below), whose sum is σ = 137002320. Its totient is φ = 42038400.

The previous prime is 87669371. The next prime is 87669403. The reversal of 87669398 is 89396678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4223 + ... + 13898.

It is an arithmetic number, because the mean of its divisors is an integer number (8562645).

Almost surely, 2^87669398 is an apocalyptic number.

87669398 is a deficient number, since it is larger than the sum of its proper divisors (49332922).

87669398 is a wasteful number, since it uses less digits than its factorization.

87669398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18223.

The product of its digits is 3919104, while the sum is 56.

The square root of 87669398 is about 9363.1937927184. The cubic root of 87669398 is about 444.2383098302.

The spelling of 87669398 in words is "eighty-seven million, six hundred sixty-nine thousand, three hundred ninety-eight".