87319266 has 8 divisors (see below), whose sum is σ = 174638544. Its totient is φ = 29106420.

The previous prime is 87319207. The next prime is 87319277. The reversal of 87319266 is 66291378.

It is a happy number.

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

87319266 is an admirable number.

It is a Curzon 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, 7276600 + ... + 7276611.

It is an arithmetic number, because the mean of its divisors is an integer number (21829818).

Almost surely, 2^87319266 is an apocalyptic number.

87319266 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.

87319266 is a wasteful number, since it uses less digits than its factorization.

87319266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553216.

The product of its digits is 108864, while the sum is 42.

The square root of 87319266 is about 9344.4778345288. The cubic root of 87319266 is about 443.6461245720.

The spelling of 87319266 in words is "eighty-seven million, three hundred nineteen thousand, two hundred sixty-six".