9945726 has 24 divisors (see below), whose sum is σ = 23139720. Its totient is φ = 2841552.

The previous prime is 9945709. The next prime is 9945743. The reversal of 9945726 is 6275499.

It is an interprime number because it is at equal distance from previous prime (9945709) and next prime (9945743).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16621 + ... + 17208.

It is an arithmetic number, because the mean of its divisors is an integer number (964155).

Almost surely, 2^9945726 is an apocalyptic number.

9945726 is an abundant number, since it is smaller than the sum of its proper divisors (13193994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9945726 is a wasteful number, since it uses less digits than its factorization.

9945726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33848 (or 33841 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 9945726 is about 3153.6845118052. The cubic root of 9945726 is about 215.0529957695.

The spelling of 9945726 in words is "nine million, nine hundred forty-five thousand, seven hundred twenty-six".