87430266 has 160 divisors (see below), whose sum is σ = 251463168. Its totient is φ = 22044960.

The previous prime is 87430237. The next prime is 87430319. The reversal of 87430266 is 66203478.

It is a self number, because there is not a number n which added to its sum of digits gives 87430266.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 536301 + ... + 536463.

Almost surely, 2^87430266 is an apocalyptic number.

87430266 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 87430266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125731584).

87430266 is an abundant number, since it is smaller than the sum of its proper divisors (164032902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87430266 is a wasteful number, since it uses less digits than its factorization.

87430266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 87430266 is about 9350.4152848951. The cubic root of 87430266 is about 443.8340321981.

The spelling of 87430266 in words is "eighty-seven million, four hundred thirty thousand, two hundred sixty-six".