9897734 has 16 divisors (see below), whose sum is σ = 18510336. Its totient is φ = 3856200.

The previous prime is 9897703. The next prime is 9897743. The reversal of 9897734 is 4377989.

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, 31982 + ... + 32289.

It is an arithmetic number, because the mean of its divisors is an integer number (1156896).

Almost surely, 2^9897734 is an apocalyptic number.

9897734 is a deficient number, since it is larger than the sum of its proper divisors (8612602).

9897734 is a wasteful number, since it uses less digits than its factorization.

9897734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64291.

The product of its digits is 381024, while the sum is 47.

The square root of 9897734 is about 3146.0664328650. The cubic root of 9897734 is about 214.7065330885.

The spelling of 9897734 in words is "nine million, eight hundred ninety-seven thousand, seven hundred thirty-four".