9750399 has 16 divisors (see below), whose sum is σ = 13655040. Its totient is φ = 6180480.

The previous prime is 9750397. The next prime is 9750407. The reversal of 9750399 is 9930579.

It is a happy number.

It is not a de Polignac number, because 9750399 - 2¹ = 9750397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9750399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9750397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4599 + ... + 6375.

It is an arithmetic number, because the mean of its divisors is an integer number (853440).

Almost surely, 2^9750399 is an apocalyptic number.

9750399 is a deficient number, since it is larger than the sum of its proper divisors (3904641).

9750399 is a wasteful number, since it uses less digits than its factorization.

9750399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 76545, while the sum is 42.

The square root of 9750399 is about 3122.5628896789. The cubic root of 9750399 is about 213.6358482175.

The spelling of 9750399 in words is "nine million, seven hundred fifty thousand, three hundred ninety-nine".