87169898 has 8 divisors (see below), whose sum is σ = 130825380. Its totient is φ = 43561440.

The previous prime is 87169883. The next prime is 87169903. The reversal of 87169898 is 89896178.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69672409 + 17497489 = 8347^2 + 4183^2 .

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

It is a super-2 number, since 2×87169898² = 15197182234660808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683 + ... + 14798.

Almost surely, 2^87169898 is an apocalyptic number.

87169898 is a deficient number, since it is larger than the sum of its proper divisors (43655482).

87169898 is a wasteful number, since it uses less digits than its factorization.

87169898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23512.

The product of its digits is 1741824, while the sum is 56.

The square root of 87169898 is about 9336.4820998061. The cubic root of 87169898 is about 443.3930137431.

The spelling of 87169898 in words is "eighty-seven million, one hundred sixty-nine thousand, eight hundred ninety-eight".