9930447 has 12 divisors (see below), whose sum is σ = 14807104. Its totient is φ = 6406560.

The previous prime is 9930443. The next prime is 9930461. The reversal of 9930447 is 7440399.

It is not a de Polignac number, because 9930447 - 2² = 9930443 is a prime.

It is a super-2 number, since 2×9930447² = 197227555239618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9930443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17518 + ... + 18075.

Almost surely, 2^9930447 is an apocalyptic number.

9930447 is a deficient number, since it is larger than the sum of its proper divisors (4876657).

9930447 is a wasteful number, since it uses less digits than its factorization.

9930447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35630 (or 35627 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 9930447 is about 3151.2611761008. The cubic root of 9930447 is about 214.9428151503.

It can be divided in two parts, 9930 and 447, that multiplied together give a triangular number (4438710 = T₂₉₇₉).

The spelling of 9930447 in words is "nine million, nine hundred thirty thousand, four hundred forty-seven".