87248231 has 4 divisors (see below), whose sum is σ = 99712272. Its totient is φ = 74784192.

The previous prime is 87248221. The next prime is 87248237. The reversal of 87248231 is 13284278.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87248231 - 2¹⁰ = 87247207 is a prime.

It is a super-2 number, since 2×87248231² = 15224507625258722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87248191 and 87248200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87248237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6232010 + ... + 6232023.

It is an arithmetic number, because the mean of its divisors is an integer number (24928068).

Almost surely, 2^87248231 is an apocalyptic number.

87248231 is a deficient number, since it is larger than the sum of its proper divisors (12464041).

87248231 is a wasteful number, since it uses less digits than its factorization.

87248231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12464040.

The product of its digits is 21504, while the sum is 35.

The square root of 87248231 is about 9340.6761532557. The cubic root of 87248231 is about 443.5257885777.

The spelling of 87248231 in words is "eighty-seven million, two hundred forty-eight thousand, two hundred thirty-one".