9124987 has 4 divisors (see below), whose sum is σ = 9337240. Its totient is φ = 8912736.

The previous prime is 9124981. The next prime is 9124993. The reversal of 9124987 is 7894219.

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

It is an interprime number because it is at equal distance from previous prime (9124981) and next prime (9124993).

It is a cyclic number.

It is not a de Polignac number, because 9124987 - 2¹⁵ = 9092219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9124981) 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, 106062 + ... + 106147.

It is an arithmetic number, because the mean of its divisors is an integer number (2334310).

Almost surely, 2^9124987 is an apocalyptic number.

9124987 is a deficient number, since it is larger than the sum of its proper divisors (212253).

9124987 is a wasteful number, since it uses less digits than its factorization.

9124987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212252.

The product of its digits is 36288, while the sum is 40.

The square root of 9124987 is about 3020.7593416226. The cubic root of 9124987 is about 208.9668605836.

The spelling of 9124987 in words is "nine million, one hundred twenty-four thousand, nine hundred eighty-seven".