11400657 has 4 divisors (see below), whose sum is σ = 15200880. Its totient is φ = 7600436.

The previous prime is 11400643. The next prime is 11400661. The reversal of 11400657 is 75600411.

11400657 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 11400657 - 2⁶ = 11400593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11400607) 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, 1900107 + ... + 1900112.

It is an arithmetic number, because the mean of its divisors is an integer number (3800220).

Almost surely, 2^11400657 is an apocalyptic number.

It is an amenable number.

11400657 is a deficient number, since it is larger than the sum of its proper divisors (3800223).

11400657 is an equidigital number, since it uses as much as digits as its factorization.

11400657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800222.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 11400657 is about 3376.4858951282. The cubic root of 11400657 is about 225.0660349386.

The spelling of 11400657 in words is "eleven million, four hundred thousand, six hundred fifty-seven".