87982267 has 4 divisors (see below), whose sum is σ = 88104016. Its totient is φ = 87860520.

The previous prime is 87982253. The next prime is 87982273. The reversal of 87982267 is 76228978.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87982267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87982267.

It is not an unprimeable number, because it can be changed into a prime (87986267) 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, 59784 + ... + 61237.

It is an arithmetic number, because the mean of its divisors is an integer number (22026004).

Almost surely, 2^87982267 is an apocalyptic number.

87982267 is a deficient number, since it is larger than the sum of its proper divisors (121749).

87982267 is a wasteful number, since it uses less digits than its factorization.

87982267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121748.

The product of its digits is 677376, while the sum is 49.

The square root of 87982267 is about 9379.8862999505. The cubic root of 87982267 is about 444.7661389561.

The spelling of 87982267 in words is "eighty-seven million, nine hundred eighty-two thousand, two hundred sixty-seven".