9745990 has 8 divisors (see below), whose sum is σ = 17542800. Its totient is φ = 3898392.

The previous prime is 9745979. The next prime is 9745999. The reversal of 9745990 is 995479.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9745999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487290 + ... + 487309.

It is an arithmetic number, because the mean of its divisors is an integer number (2192850).

Almost surely, 2^9745990 is an apocalyptic number.

9745990 is a deficient number, since it is larger than the sum of its proper divisors (7796810).

9745990 is a wasteful number, since it uses less digits than its factorization.

9745990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974606.

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

The square root of 9745990 is about 3121.8568192664. The cubic root of 9745990 is about 213.6036422717.

The spelling of 9745990 in words is "nine million, seven hundred forty-five thousand, nine hundred ninety".