9987069 has 4 divisors (see below), whose sum is σ = 13316096. Its totient is φ = 6658044.

The previous prime is 9987031. The next prime is 9987071. The reversal of 9987069 is 9607899.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9987069 - 2⁷ = 9986941 is a prime.

It is a super-2 number, since 2×9987069² = 199483094421522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9987569) 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, 1664509 + ... + 1664514.

It is an arithmetic number, because the mean of its divisors is an integer number (3329024).

Almost surely, 2^9987069 is an apocalyptic number.

It is an amenable number.

9987069 is a deficient number, since it is larger than the sum of its proper divisors (3329027).

9987069 is a wasteful number, since it uses less digits than its factorization.

9987069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329026.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9987069 is about 3160.2324281609. The cubic root of 9987069 is about 215.3505656306.

The spelling of 9987069 in words is "nine million, nine hundred eighty-seven thousand, sixty-nine".