11903457 has 4 divisors (see below), whose sum is σ = 15871280. Its totient is φ = 7935636.

The previous prime is 11903449. The next prime is 11903471. The reversal of 11903457 is 75430911.

11903457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11903457 - 2³ = 11903449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11903447) 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, 1983907 + ... + 1983912.

It is an arithmetic number, because the mean of its divisors is an integer number (3967820).

Almost surely, 2^11903457 is an apocalyptic number.

It is an amenable number.

11903457 is a deficient number, since it is larger than the sum of its proper divisors (3967823).

11903457 is an equidigital number, since it uses as much as digits as its factorization.

11903457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967822.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 11903457 is about 3450.1386928644. The cubic root of 11903457 is about 228.3272271205.

The spelling of 11903457 in words is "eleven million, nine hundred three thousand, four hundred fifty-seven".