87306229 has 4 divisors (see below), whose sum is σ = 91102176. Its totient is φ = 83510284.

The previous prime is 87306221. The next prime is 87306239. The reversal of 87306229 is 92260378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87306229 - 2³ = 87306221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87306221) 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, 1897939 + ... + 1897984.

It is an arithmetic number, because the mean of its divisors is an integer number (22775544).

Almost surely, 2^87306229 is an apocalyptic number.

It is an amenable number.

87306229 is a deficient number, since it is larger than the sum of its proper divisors (3795947).

87306229 is a wasteful number, since it uses less digits than its factorization.

87306229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3795946.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 87306229 is about 9343.7802307203. The cubic root of 87306229 is about 443.6240442887.

The spelling of 87306229 in words is "eighty-seven million, three hundred six thousand, two hundred twenty-nine".