9897874 has 16 divisors (see below), whose sum is σ = 17553600. Its totient is φ = 4095504.

The previous prime is 9897863. The next prime is 9897887. The reversal of 9897874 is 4787989.

9897874 = 581² + 582² + ... + 608².

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11784 + ... + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (1097100).

Almost surely, 2^9897874 is an apocalyptic number.

9897874 is a deficient number, since it is larger than the sum of its proper divisors (7655726).

9897874 is a wasteful number, since it uses less digits than its factorization.

9897874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24417.

The product of its digits is 1016064, while the sum is 52.

The square root of 9897874 is about 3146.0886827933. The cubic root of 9897874 is about 214.7075454001.

The spelling of 9897874 in words is "nine million, eight hundred ninety-seven thousand, eight hundred seventy-four".