87982534 has 4 divisors (see below), whose sum is σ = 131973804. Its totient is φ = 43991266.

The previous prime is 87982523. The next prime is 87982541. The reversal of 87982534 is 43528978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43528978 = 2 ⋅21764489.

It is a super-2 number, since 2×87982534² = 15481852578122312, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 21995632 + ... + 21995635.

It is an arithmetic number, because the mean of its divisors is an integer number (32993451).

Almost surely, 2^87982534 is an apocalyptic number.

87982534 is a deficient number, since it is larger than the sum of its proper divisors (43991270).

87982534 is a wasteful number, since it uses less digits than its factorization.

87982534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43991269.

The product of its digits is 483840, while the sum is 46.

The square root of 87982534 is about 9379.9005325217. The cubic root of 87982534 is about 444.7665888666.

The spelling of 87982534 in words is "eighty-seven million, nine hundred eighty-two thousand, five hundred thirty-four".