87430281 has 8 divisors (see below), whose sum is σ = 116639040. Its totient is φ = 58254192.

The previous prime is 87430237. The next prime is 87430319. The reversal of 87430281 is 18203478.

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

It is not a de Polignac number, because 87430281 - 2¹⁹ = 86905993 is a prime.

It is a super-2 number, since 2×87430281² = 15288108071477922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87430781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030 + ... + 13263.

It is an arithmetic number, because the mean of its divisors is an integer number (14579880).

Almost surely, 2^87430281 is an apocalyptic number.

It is an amenable number.

87430281 is a deficient number, since it is larger than the sum of its proper divisors (29208759).

87430281 is a wasteful number, since it uses less digits than its factorization.

87430281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16335.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 87430281 is about 9350.4160869985. The cubic root of 87430281 is about 443.8340575803.

The spelling of 87430281 in words is "eighty-seven million, four hundred thirty thousand, two hundred eighty-one".