11403957 has 16 divisors (see below), whose sum is σ = 16407360. Its totient is φ = 7018752.

The previous prime is 11403941. The next prime is 11403961. The reversal of 11403957 is 75930411.

It is not a de Polignac number, because 11403957 - 2⁴ = 11403941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403937) 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 15 ways as a sum of consecutive naturals, for example, 594 + ... + 4812.

It is an arithmetic number, because the mean of its divisors is an integer number (1025460).

Almost surely, 2^11403957 is an apocalyptic number.

11403957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11403957 is a deficient number, since it is larger than the sum of its proper divisors (5003403).

11403957 is a wasteful number, since it uses less digits than its factorization.

11403957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292.

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

The square root of 11403957 is about 3376.9745335137. The cubic root of 11403957 is about 225.0877484903.

The spelling of 11403957 in words is "eleven million, four hundred three thousand, nine hundred fifty-seven".