9956690 has 8 divisors (see below), whose sum is σ = 17922060. Its totient is φ = 3982672.

The previous prime is 9956641. The next prime is 9956699. The reversal of 9956690 is 966599.

It can be written as a sum of positive squares in 2 ways, for example, as 9928801 + 27889 = 3151^2 + 167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9956690² = 198271351512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9956699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497825 + ... + 497844.

Almost surely, 2^9956690 is an apocalyptic number.

9956690 is a deficient number, since it is larger than the sum of its proper divisors (7965370).

9956690 is a wasteful number, since it uses less digits than its factorization.

9956690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995676.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 9956690 is about 3155.4223172184. The cubic root of 9956690 is about 215.1319903434.

The spelling of 9956690 in words is "nine million, nine hundred fifty-six thousand, six hundred ninety".