8987279 has 4 divisors (see below), whose sum is σ = 10271184. Its totient is φ = 7703376.

The previous prime is 8987269. The next prime is 8987287. The reversal of 8987279 is 9727898.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8987279 - 2⁸ = 8987023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8987219) 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, 641942 + ... + 641955.

It is an arithmetic number, because the mean of its divisors is an integer number (2567796).

Almost surely, 2^8987279 is an apocalyptic number.

8987279 is a deficient number, since it is larger than the sum of its proper divisors (1283905).

8987279 is a wasteful number, since it uses less digits than its factorization.

8987279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283904.

The product of its digits is 508032, while the sum is 50.

The square root of 8987279 is about 2997.8790836190. The cubic root of 8987279 is about 207.9103333310.

The spelling of 8987279 in words is "eight million, nine hundred eighty-seven thousand, two hundred seventy-nine".