9993949 has 4 divisors (see below), whose sum is σ = 11421664. Its totient is φ = 8566236.

The previous prime is 9993941. The next prime is 9993967. The reversal of 9993949 is 9493999.

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.

It is not a de Polignac number, because 9993949 - 2³ = 9993941 is a prime.

It is a super-2 number, since 2×9993949² = 199758033229202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9993896 and 9993905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993941) 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, 713847 + ... + 713860.

It is an arithmetic number, because the mean of its divisors is an integer number (2855416).

Almost surely, 2^9993949 is an apocalyptic number.

It is an amenable number.

9993949 is a deficient number, since it is larger than the sum of its proper divisors (1427715).

9993949 is a wasteful number, since it uses less digits than its factorization.

9993949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427714.

The product of its digits is 708588, while the sum is 52.

The square root of 9993949 is about 3161.3207682866. The cubic root of 9993949 is about 215.4000052877.

The spelling of 9993949 in words is "nine million, nine hundred ninety-three thousand, nine hundred forty-nine".