11893949 has 2 divisors, whose sum is σ = 11893950. Its totient is φ = 11893948.

The previous prime is 11893939. The next prime is 11893957. The reversal of 11893949 is 94939811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6853924 + 5040025 = 2618^2 + 2245^2 .

It is a cyclic number.

It is not a de Polignac number, because 11893949 - 2⁴ = 11893933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11893939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946974 + 5946975.

It is an arithmetic number, because the mean of its divisors is an integer number (5946975).

Almost surely, 2^11893949 is an apocalyptic number.

It is an amenable number.

11893949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11893949 is an equidigital number, since it uses as much as digits as its factorization.

11893949 is an evil number, because the sum of its binary digits is even.

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

The square root of 11893949 is about 3448.7605019775. The cubic root of 11893949 is about 228.2664180756.

The spelling of 11893949 in words is "eleven million, eight hundred ninety-three thousand, nine hundred forty-nine".