87672586 has 4 divisors (see below), whose sum is σ = 131508882. Its totient is φ = 43836292.

The previous prime is 87672583. The next prime is 87672601. The reversal of 87672586 is 68527678.

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., 68145025 + 19527561 = 8255^2 + 4419^2 .

It is not an unprimeable number, because it can be changed into a prime (87672583) by changing a digit.

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, 21918145 + ... + 21918148.

Almost surely, 2^87672586 is an apocalyptic number.

87672586 is a deficient number, since it is larger than the sum of its proper divisors (43836296).

87672586 is a wasteful number, since it uses less digits than its factorization.

87672586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43836295.

The product of its digits is 1128960, while the sum is 49.

The square root of 87672586 is about 9363.3640322269. The cubic root of 87672586 is about 444.2436945087.

The spelling of 87672586 in words is "eighty-seven million, six hundred seventy-two thousand, five hundred eighty-six".