9963730 has 32 divisors (see below), whose sum is σ = 21056256. Its totient is φ = 3322944.

The previous prime is 9963727. The next prime is 9963739. The reversal of 9963730 is 373699.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 9963730.

It is not an unprimeable number, because it can be changed into a prime (9963739) 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, 667 + ... + 4513.

It is an arithmetic number, because the mean of its divisors is an integer number (658008).

Almost surely, 2^9963730 is an apocalyptic number.

9963730 is an abundant number, since it is smaller than the sum of its proper divisors (11092526).

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

9963730 is a wasteful number, since it uses less digits than its factorization.

9963730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 9963730 is about 3156.5376601587. The cubic root of 9963730 is about 215.1826823035.

The spelling of 9963730 in words is "nine million, nine hundred sixty-three thousand, seven hundred thirty".