9897051 has 4 divisors (see below), whose sum is σ = 13196072. Its totient is φ = 6598032.

The previous prime is 9897037. The next prime is 9897059. The reversal of 9897051 is 1507989.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9897051 - 2⁶ = 9896987 is a prime.

It is a Duffinian number.

9897051 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9897059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1649506 + ... + 1649511.

It is an arithmetic number, because the mean of its divisors is an integer number (3299018).

Almost surely, 2^9897051 is an apocalyptic number.

9897051 is a deficient number, since it is larger than the sum of its proper divisors (3299021).

9897051 is a wasteful number, since it uses less digits than its factorization.

9897051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299020.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 9897051 is about 3145.9578827441. The cubic root of 9897051 is about 214.7015943172.

The spelling of 9897051 in words is "nine million, eight hundred ninety-seven thousand, fifty-one".