9942645 has 8 divisors (see below), whose sum is σ = 15908256. Its totient is φ = 5302736.

The previous prime is 9942629. The next prime is 9942659. The reversal of 9942645 is 5462499.

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

It is a cyclic number.

It is not a de Polignac number, because 9942645 - 2⁴ = 9942629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331407 + ... + 331436.

It is an arithmetic number, because the mean of its divisors is an integer number (1988532).

Almost surely, 2^9942645 is an apocalyptic number.

It is an amenable number.

9942645 is a deficient number, since it is larger than the sum of its proper divisors (5965611).

9942645 is a wasteful number, since it uses less digits than its factorization.

9942645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662851.

The product of its digits is 77760, while the sum is 39.

The square root of 9942645 is about 3153.1959977141. The cubic root of 9942645 is about 215.0307870100.

The spelling of 9942645 in words is "nine million, nine hundred forty-two thousand, six hundred forty-five".