9956018 has 4 divisors (see below), whose sum is σ = 14934030. Its totient is φ = 4978008.

The previous prime is 9956017. The next prime is 9956027. The reversal of 9956018 is 8106599.

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., 9320809 + 635209 = 3053^2 + 797^2 .

It is not an unprimeable number, because it can be changed into a prime (9956017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489003 + ... + 2489006.

Almost surely, 2^9956018 is an apocalyptic number.

9956018 is a deficient number, since it is larger than the sum of its proper divisors (4978012).

9956018 is a wasteful number, since it uses less digits than its factorization.

9956018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978011.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 9956018 is about 3155.3158320523. The cubic root of 9956018 is about 215.1271503162.

The spelling of 9956018 in words is "nine million, nine hundred fifty-six thousand, eighteen".