9897730 has 16 divisors (see below), whose sum is σ = 18195840. Its totient is φ = 3874672.

The previous prime is 9897703. The next prime is 9897743. The reversal of 9897730 is 377989.

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, 10060 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (1137240).

Almost surely, 2^9897730 is an apocalyptic number.

9897730 is a deficient number, since it is larger than the sum of its proper divisors (8298110).

9897730 is a wasteful number, since it uses less digits than its factorization.

9897730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21113.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 9897730 is about 3146.0657971505. The cubic root of 9897730 is about 214.7065041652.

The spelling of 9897730 in words is "nine million, eight hundred ninety-seven thousand, seven hundred thirty".