9945407 has 8 divisors (see below), whose sum is σ = 10439520. Its totient is φ = 9456480.

The previous prime is 9945359. The next prime is 9945409. The reversal of 9945407 is 7045499.

9945407 is digitally balanced in base 3, 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 cyclic number.

It is not a de Polignac number, because 9945407 - 2⁶ = 9945343 is a prime.

It is a super-2 number, since 2×9945407² = 197822240791298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9945409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2969 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (1304940).

Almost surely, 2^9945407 is an apocalyptic number.

9945407 is a deficient number, since it is larger than the sum of its proper divisors (494113).

9945407 is a wasteful number, since it uses less digits than its factorization.

9945407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9945407 is about 3153.6339356368. The cubic root of 9945407 is about 215.0506965360.

The spelling of 9945407 in words is "nine million, nine hundred forty-five thousand, four hundred seven".