9949811 has 4 divisors (see below), whose sum is σ = 10535112. Its totient is φ = 9364512.

The previous prime is 9949783. The next prime is 9949829. The reversal of 9949811 is 1189499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1189499 = 59 ⋅20161.

It is a cyclic number.

It is not a de Polignac number, because 9949811 - 2⁶ = 9949747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9949831) 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, 292625 + ... + 292658.

It is an arithmetic number, because the mean of its divisors is an integer number (2633778).

Almost surely, 2^9949811 is an apocalyptic number.

9949811 is a deficient number, since it is larger than the sum of its proper divisors (585301).

9949811 is a wasteful number, since it uses less digits than its factorization.

9949811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585300.

The product of its digits is 23328, while the sum is 41.

The square root of 9949811 is about 3154.3321004612. The cubic root of 9949811 is about 215.0824345871.

The spelling of 9949811 in words is "nine million, nine hundred forty-nine thousand, eight hundred eleven".