11421757 has 2 divisors, whose sum is σ = 11421758. Its totient is φ = 11421756.

The previous prime is 11421749. The next prime is 11421763. The reversal of 11421757 is 75712411.

11421757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7284601 + 4137156 = 2699^2 + 2034^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421757 - 2³ = 11421749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11421257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5710878 + 5710879.

It is an arithmetic number, because the mean of its divisors is an integer number (5710879).

Almost surely, 2^11421757 is an apocalyptic number.

It is an amenable number.

11421757 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421757 is an equidigital number, since it uses as much as digits as its factorization.

11421757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1960, while the sum is 28.

The square root of 11421757 is about 3379.6090010532. The cubic root of 11421757 is about 225.2047978959.

The spelling of 11421757 in words is "eleven million, four hundred twenty-one thousand, seven hundred fifty-seven".