9963091 has 4 divisors (see below), whose sum is σ = 10056312. Its totient is φ = 9869872.

The previous prime is 9963077. The next prime is 9963127. The reversal of 9963091 is 1903699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9963091 - 2⁷ = 9962963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9963091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46450 + ... + 46663.

It is an arithmetic number, because the mean of its divisors is an integer number (2514078).

Almost surely, 2^9963091 is an apocalyptic number.

9963091 is a deficient number, since it is larger than the sum of its proper divisors (93221).

9963091 is a wasteful number, since it uses less digits than its factorization.

9963091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93220.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 9963091 is about 3156.4364400380. The cubic root of 9963091 is about 215.1780821295.

It can be divided in two parts, 99 and 63091, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 9963091 in words is "nine million, nine hundred sixty-three thousand, ninety-one".