87216026 has 4 divisors (see below), whose sum is σ = 130824042. Its totient is φ = 43608012.

The previous prime is 87216011. The next prime is 87216053. The reversal of 87216026 is 62061278.

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., 45549001 + 41667025 = 6749^2 + 6455^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87215983 and 87216001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21804005 + ... + 21804008.

Almost surely, 2^87216026 is an apocalyptic number.

87216026 is a deficient number, since it is larger than the sum of its proper divisors (43608016).

87216026 is a wasteful number, since it uses less digits than its factorization.

87216026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43608015.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 87216026 is about 9338.9520825412. The cubic root of 87216026 is about 443.4712105625.

The spelling of 87216026 in words is "eighty-seven million, two hundred sixteen thousand, twenty-six".