9997705 has 8 divisors (see below), whose sum is σ = 12628800. Its totient is φ = 7577136.

The previous prime is 9997703. The next prime is 9997711. The reversal of 9997705 is 5077999.

9997705 is digitally balanced in base 3, because in such base 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 a cyclic number.

It is not a de Polignac number, because 9997705 - 2¹ = 9997703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9997703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52525 + ... + 52714.

It is an arithmetic number, because the mean of its divisors is an integer number (1578600).

Almost surely, 2^9997705 is an apocalyptic number.

9997705 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9997705 is a deficient number, since it is larger than the sum of its proper divisors (2631095).

9997705 is a wasteful number, since it uses less digits than its factorization.

9997705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105263.

The product of its (nonzero) digits is 178605, while the sum is 46.

The square root of 9997705 is about 3161.9147679847. The cubic root of 9997705 is about 215.4269863168.

The spelling of 9997705 in words is "nine million, nine hundred ninety-seven thousand, seven hundred five".