9945766 has 8 divisors (see below), whose sum is σ = 15017904. Its totient is φ = 4939800.

The previous prime is 9945743. The next prime is 9945779. The reversal of 9945766 is 6675499.

9945766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×9945766² = 197836522653512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16165 + ... + 16768.

It is an arithmetic number, because the mean of its divisors is an integer number (1877238).

Almost surely, 2^9945766 is an apocalyptic number.

9945766 is a deficient number, since it is larger than the sum of its proper divisors (5072138).

9945766 is a wasteful number, since it uses less digits than its factorization.

9945766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33086.

The product of its digits is 408240, while the sum is 46.

The square root of 9945766 is about 3153.6908535873. The cubic root of 9945766 is about 215.0532840712.

The spelling of 9945766 in words is "nine million, nine hundred forty-five thousand, seven hundred sixty-six".