9861948 has 18 divisors (see below), whose sum is σ = 24928904. Its totient is φ = 3287304.

The previous prime is 9861947. The next prime is 9861953. The reversal of 9861948 is 8491689.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9861947) 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, 136936 + ... + 137007.

Almost surely, 2^9861948 is an apocalyptic number.

It is an amenable number.

9861948 is an abundant number, since it is smaller than the sum of its proper divisors (15066956).

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

9861948 is a wasteful number, since it uses less digits than its factorization.

9861948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273953 (or 273948 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 9861948 is about 3140.3738630934. The cubic root of 9861948 is about 214.4474580748.

The spelling of 9861948 in words is "nine million, eight hundred sixty-one thousand, nine hundred forty-eight".