9857434 has 4 divisors (see below), whose sum is σ = 14786154. Its totient is φ = 4928716.

The previous prime is 9857423. The next prime is 9857443. The reversal of 9857434 is 4347589.

9857434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 9765625 + 91809 = 3125^2 + 303^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2464357 + ... + 2464360.

Almost surely, 2^9857434 is an apocalyptic number.

9857434 is a deficient number, since it is larger than the sum of its proper divisors (4928720).

9857434 is a wasteful number, since it uses less digits than its factorization.

9857434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928719.

The product of its digits is 120960, while the sum is 40.

The square root of 9857434 is about 3139.6550765968. The cubic root of 9857434 is about 214.4147341966.

The spelling of 9857434 in words is "nine million, eight hundred fifty-seven thousand, four hundred thirty-four".