87926281 has 4 divisors (see below), whose sum is σ = 92554000. Its totient is φ = 83298564.

The previous prime is 87926273. The next prime is 87926303. The reversal of 87926281 is 18262978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87926281 - 2³ = 87926273 is a prime.

It is a super-2 number, since 2×87926281² = 15462061780981922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87926081) 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 in 3 ways as a sum of consecutive naturals, for example, 2313831 + ... + 2313868.

It is an arithmetic number, because the mean of its divisors is an integer number (23138500).

Almost surely, 2^87926281 is an apocalyptic number.

It is an amenable number.

87926281 is a deficient number, since it is larger than the sum of its proper divisors (4627719).

87926281 is a wasteful number, since it uses less digits than its factorization.

87926281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627718.

The product of its digits is 96768, while the sum is 43.

The square root of 87926281 is about 9376.9014605039. The cubic root of 87926281 is about 444.6717791815.

The spelling of 87926281 in words is "eighty-seven million, nine hundred twenty-six thousand, two hundred eighty-one".