87399066 has 8 divisors (see below), whose sum is σ = 174798144. Its totient is φ = 29133020.

The previous prime is 87399049. The next prime is 87399071. The reversal of 87399066 is 66099378.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

87399066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7283250 + ... + 7283261.

It is an arithmetic number, because the mean of its divisors is an integer number (21849768).

Almost surely, 2^87399066 is an apocalyptic number.

87399066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87399066 is a wasteful number, since it uses less digits than its factorization.

87399066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14566516.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 87399066 is about 9348.7467609300. The cubic root of 87399066 is about 443.7812309964.

The spelling of 87399066 in words is "eighty-seven million, three hundred ninety-nine thousand, sixty-six".