8998887 has 4 divisors (see below), whose sum is σ = 11998520. Its totient is φ = 5999256.

The previous prime is 8998883. The next prime is 8998889. The reversal of 8998887 is 7888998.

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

It is not a de Polignac number, because 8998887 - 2² = 8998883 is a prime.

It is a super-3 number, since 3×8998887³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

8998887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8998883) 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, 1499812 + ... + 1499817.

It is an arithmetic number, because the mean of its divisors is an integer number (2999630).

Almost surely, 2^8998887 is an apocalyptic number.

8998887 is a deficient number, since it is larger than the sum of its proper divisors (2999633).

8998887 is a wasteful number, since it uses less digits than its factorization.

8998887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999632.

The product of its digits is 2322432, while the sum is 57.

The square root of 8998887 is about 2999.8144942646. The cubic root of 8998887 is about 207.9998073839. Note that the first 3 decimals are identical.

The spelling of 8998887 in words is "eight million, nine hundred ninety-eight thousand, eight hundred eighty-seven".