9945790 has 8 divisors (see below), whose sum is σ = 17902440. Its totient is φ = 3978312.

The previous prime is 9945781. The next prime is 9945841. The reversal of 9945790 is 975499.

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

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, 497280 + ... + 497299.

It is an arithmetic number, because the mean of its divisors is an integer number (2237805).

Almost surely, 2^9945790 is an apocalyptic number.

9945790 is a deficient number, since it is larger than the sum of its proper divisors (7956650).

9945790 is a wasteful number, since it uses less digits than its factorization.

9945790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994586.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 9945790 is about 3153.6946586504. The cubic root of 9945790 is about 215.0534570518.

The spelling of 9945790 in words is "nine million, nine hundred forty-five thousand, seven hundred ninety".