87149882 has 8 divisors (see below), whose sum is σ = 132515796. Its totient is φ = 42977952.

The previous prime is 87149849. The next prime is 87149893. The reversal of 87149882 is 28894178.

It can be written as a sum of positive squares in 2 ways, for example, as 84842521 + 2307361 = 9211^2 + 1519^2 .

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

It is a super-2 number, since 2×87149882² = 15190203865227848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298313 + ... + 298604.

Almost surely, 2^87149882 is an apocalyptic number.

87149882 is a deficient number, since it is larger than the sum of its proper divisors (45365914).

87149882 is a wasteful number, since it uses less digits than its factorization.

87149882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596992.

The product of its digits is 258048, while the sum is 47.

The square root of 87149882 is about 9335.4101141835. The cubic root of 87149882 is about 443.3590737625.

The spelling of 87149882 in words is "eighty-seven million, one hundred forty-nine thousand, eight hundred eighty-two".