9865146 has 16 divisors (see below), whose sum is σ = 20189664. Its totient is φ = 3211824.

The previous prime is 9865139. The next prime is 9865153. The reversal of 9865146 is 6415689.

It is an interprime number because it is at equal distance from previous prime (9865139) and next prime (9865153).

It is a super-2 number, since 2×9865146² = 194642211202632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18861 + ... + 19376.

It is an arithmetic number, because the mean of its divisors is an integer number (1261854).

Almost surely, 2^9865146 is an apocalyptic number.

9865146 is an abundant number, since it is smaller than the sum of its proper divisors (10324518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9865146 is a wasteful number, since it uses less digits than its factorization.

9865146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38285.

The product of its digits is 51840, while the sum is 39.

The square root of 9865146 is about 3140.8829968657. The cubic root of 9865146 is about 214.4706356747.

It can be divided in two parts, 9865 and 146, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 9865146 in words is "nine million, eight hundred sixty-five thousand, one hundred forty-six".