9894869 has 6 divisors (see below), whose sum is σ = 10024866. Its totient is φ = 9765600.

The previous prime is 9894851. The next prime is 9894883. The reversal of 9894869 is 9684989.

It can be written as a sum of positive squares in 3 ways, for example, as 3844 + 9891025 = 62^2 + 3145^2 .

It is not a de Polignac number, because 9894869 - 2¹⁶ = 9829333 is a prime.

It is a super-2 number, since 2×9894869² = 195816865054322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9894869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9894809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31457 + ... + 31769.

It is an arithmetic number, because the mean of its divisors is an integer number (1670811).

Almost surely, 2^9894869 is an apocalyptic number.

It is an amenable number.

9894869 is a deficient number, since it is larger than the sum of its proper divisors (129997).

9894869 is an equidigital number, since it uses as much as digits as its factorization.

9894869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 414 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 9894869 is about 3145.6110694108. The cubic root of 9894869 is about 214.6858147578.

The spelling of 9894869 in words is "nine million, eight hundred ninety-four thousand, eight hundred sixty-nine".