11428087 has 6 divisors (see below), whose sum is σ = 12561584. Its totient is φ = 10389060.

The previous prime is 11428069. The next prime is 11428111. The reversal of 11428087 is 78082411.

It is not a de Polignac number, because 11428087 - 2⁷ = 11427959 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 (11428037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47103 + ... + 47344.

Almost surely, 2^11428087 is an apocalyptic number.

11428087 is a deficient number, since it is larger than the sum of its proper divisors (1133497).

11428087 is an equidigital number, since it uses as much as digits as its factorization.

11428087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94469 (or 94458 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 11428087 is about 3380.5453702029. The cubic root of 11428087 is about 225.2463934550.

It can be divided in two parts, 1142 and 8087, that added together give a palindrome (9229).

The spelling of 11428087 in words is "eleven million, four hundred twenty-eight thousand, eighty-seven".