87833231 has 2 divisors, whose sum is σ = 87833232. Its totient is φ = 87833230.

The previous prime is 87833201. The next prime is 87833269. The reversal of 87833231 is 13233878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87833231 - 2¹⁸ = 87571087 is a prime.

It is a super-2 number, since 2×87833231² = 15429352935798722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87833191 and 87833200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87833201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43916615 + 43916616.

It is an arithmetic number, because the mean of its divisors is an integer number (43916616).

Almost surely, 2^87833231 is an apocalyptic number.

87833231 is a deficient number, since it is larger than the sum of its proper divisors (1).

87833231 is an equidigital number, since it uses as much as digits as its factorization.

87833231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 87833231 is about 9371.9384867806. The cubic root of 87833231 is about 444.5148624511.

The spelling of 87833231 in words is "eighty-seven million, eight hundred thirty-three thousand, two hundred thirty-one".