9915005 has 4 divisors (see below), whose sum is σ = 11898012. Its totient is φ = 7932000.

The previous prime is 9914987. The next prime is 9915041. The reversal of 9915005 is 5005199.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3976036 + 5938969 = 1994^2 + 2437^2 .

It is not a de Polignac number, because 9915005 - 2¹² = 9910909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991496 + ... + 991505.

It is an arithmetic number, because the mean of its divisors is an integer number (2974503).

Almost surely, 2^9915005 is an apocalyptic number.

It is an amenable number.

9915005 is a deficient number, since it is larger than the sum of its proper divisors (1983007).

9915005 is a wasteful number, since it uses less digits than its factorization.

9915005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983006.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 9915005 is about 3148.8100927176. The cubic root of 9915005 is about 214.8313442071.

The spelling of 9915005 in words is "nine million, nine hundred fifteen thousand, five".