9963493 has 4 divisors (see below), whose sum is σ = 10284928. Its totient is φ = 9642060.

The previous prime is 9963469. The next prime is 9963497. The reversal of 9963493 is 3943699.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3943699 = 107 ⋅36857.

It is a cyclic number.

It is not a de Polignac number, because 9963493 - 2¹³ = 9955301 is a prime.

It is a super-2 number, since 2×9963493² = 198542385522098, which contains 22 as substring.

It is the 3157-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9963497) by changing a digit.

It is a nontrivial repunit in base 3156.

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, 160671 + ... + 160732.

It is an arithmetic number, because the mean of its divisors is an integer number (2571232).

Almost surely, 2^9963493 is an apocalyptic number.

It is an amenable number.

9963493 is a deficient number, since it is larger than the sum of its proper divisors (321435).

9963493 is a wasteful number, since it uses less digits than its factorization.

9963493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321434.

The product of its digits is 157464, while the sum is 43.

The square root of 9963493 is about 3156.5001188025. The cubic root of 9963493 is about 215.1809761586.

It can be divided in two parts, 996 and 3493, that added together give a square (4489 = 67²).

The spelling of 9963493 in words is "nine million, nine hundred sixty-three thousand, four hundred ninety-three".