9963745 has 24 divisors (see below), whose sum is σ = 13483008. Its totient is φ = 7059360.

The previous prime is 9963739. The next prime is 9963749. The reversal of 9963745 is 5473699.

It is not a de Polignac number, because 9963745 - 2⁵ = 9963713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a d-powerful number, because it can be written as 9² + 9⁷ + 6⁷ + 3¹⁴ + 7⁶ + 4² + 5³ .

It is not an unprimeable number, because it can be changed into a prime (9963749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25824 + ... + 26206.

It is an arithmetic number, because the mean of its divisors is an integer number (561792).

Almost surely, 2^9963745 is an apocalyptic number.

It is an amenable number.

9963745 is a deficient number, since it is larger than the sum of its proper divisors (3519263).

9963745 is a wasteful number, since it uses less digits than its factorization.

9963745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 442 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 9963745 is about 3156.5400361789. The cubic root of 9963745 is about 215.1827902864.

The spelling of 9963745 in words is "nine million, nine hundred sixty-three thousand, seven hundred forty-five".