11903953 has 2 divisors, whose sum is σ = 11903954. Its totient is φ = 11903952.

The previous prime is 11903951. The next prime is 11903971. The reversal of 11903953 is 35930911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7033104 + 4870849 = 2652^2 + 2207^2 .

It is a cyclic number.

It is not a de Polignac number, because 11903953 - 2¹ = 11903951 is a prime.

Together with 11903951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11903951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951976 + 5951977.

It is an arithmetic number, because the mean of its divisors is an integer number (5951977).

Almost surely, 2^11903953 is an apocalyptic number.

It is an amenable number.

11903953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11903953 is an equidigital number, since it uses as much as digits as its factorization.

11903953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 11903953 is about 3450.2105732839. The cubic root of 11903953 is about 228.3303984326.

The spelling of 11903953 in words is "eleven million, nine hundred three thousand, nine hundred fifty-three".