9997015 has 8 divisors (see below), whose sum is σ = 13710240. Its totient is φ = 6855072.

The previous prime is 9997007. The next prime is 9997033. The reversal of 9997015 is 5107999.

9997015 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9997015 - 2³ = 9997007 is a prime.

9997015 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142780 + ... + 142849.

It is an arithmetic number, because the mean of its divisors is an integer number (1713780).

Almost surely, 2^9997015 is an apocalyptic number.

9997015 is a deficient number, since it is larger than the sum of its proper divisors (3713225).

9997015 is a wasteful number, since it uses less digits than its factorization.

9997015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285641.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 9997015 is about 3161.8056550016. The cubic root of 9997015 is about 215.4220302447.

The spelling of 9997015 in words is "nine million, nine hundred ninety-seven thousand, fifteen".