11457687 has 4 divisors (see below), whose sum is σ = 15276920. Its totient is φ = 7638456.

The previous prime is 11457683. The next prime is 11457701. The reversal of 11457687 is 78675411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78675411 = 3 ⋅26225137.

It is not a de Polignac number, because 11457687 - 2² = 11457683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457683) 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, 1909612 + ... + 1909617.

It is an arithmetic number, because the mean of its divisors is an integer number (3819230).

Almost surely, 2^11457687 is an apocalyptic number.

11457687 is a deficient number, since it is larger than the sum of its proper divisors (3819233).

11457687 is an equidigital number, since it uses as much as digits as its factorization.

11457687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819232.

The product of its digits is 47040, while the sum is 39.

The square root of 11457687 is about 3384.9205308249. The cubic root of 11457687 is about 225.4406967586.

The spelling of 11457687 in words is "eleven million, four hundred fifty-seven thousand, six hundred eighty-seven".