11938949 has 6 divisors (see below), whose sum is σ = 13123110. Its totient is φ = 10853480.

The previous prime is 11938943. The next prime is 11938951. The reversal of 11938949 is 94983911.

It can be written as a sum of positive squares in only one way, i.e., 6853924 + 5085025 = 2618^2 + 2255^2 .

It is not a de Polignac number, because 11938949 - 2⁴ = 11938933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938943) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 49214 + ... + 49455.

It is an arithmetic number, because the mean of its divisors is an integer number (2187185).

Almost surely, 2^11938949 is an apocalyptic number.

It is an amenable number.

11938949 is a deficient number, since it is larger than the sum of its proper divisors (1184161).

11938949 is an equidigital number, since it uses as much as digits as its factorization.

11938949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98691 (or 98680 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 11938949 is about 3455.2784258291. The cubic root of 11938949 is about 228.5539329429.

The spelling of 11938949 in words is "eleven million, nine hundred thirty-eight thousand, nine hundred forty-nine".