87303231 has 8 divisors (see below), whose sum is σ = 129338160. Its totient is φ = 58202136.

The previous prime is 87303197. The next prime is 87303263. The reversal of 87303231 is 13230378.

It is not a de Polignac number, because 87303231 - 2⁷ = 87303103 is a prime.

It is a super-2 number, since 2×87303231² = 15243708286078722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3233453 = 87303231 / (8 + 7 + 3 + 0 + 3 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 87303195 and 87303204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87303131) 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 7 ways as a sum of consecutive naturals, for example, 1616700 + ... + 1616753.

It is an arithmetic number, because the mean of its divisors is an integer number (16167270).

Almost surely, 2^87303231 is an apocalyptic number.

87303231 is a deficient number, since it is larger than the sum of its proper divisors (42034929).

87303231 is a wasteful number, since it uses less digits than its factorization.

87303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3233462 (or 3233456 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 87303231 is about 9343.6198017685. The cubic root of 87303231 is about 443.6189663764.

The spelling of 87303231 in words is "eighty-seven million, three hundred three thousand, two hundred thirty-one".