4087231 has 4 divisors (see below), whose sum is σ = 4228200. Its totient is φ = 3946264.

The previous prime is 4087229. The next prime is 4087253. The reversal of 4087231 is 1327804.

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

It is a cyclic number.

It is not a de Polignac number, because 4087231 - 2¹ = 4087229 is a prime.

It is a super-2 number, since 2×4087231² = 33410914494722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4087196 and 4087205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4087211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70441 + ... + 70498.

It is an arithmetic number, because the mean of its divisors is an integer number (1057050).

Almost surely, 2^4087231 is an apocalyptic number.

4087231 is a deficient number, since it is larger than the sum of its proper divisors (140969).

4087231 is a wasteful number, since it uses less digits than its factorization.

4087231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140968.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 4087231 is about 2021.6901345162. The cubic root of 4087231 is about 159.8857387342.

The spelling of 4087231 in words is "four million, eighty-seven thousand, two hundred thirty-one".