11422987 has 2 divisors, whose sum is σ = 11422988. Its totient is φ = 11422986.

The previous prime is 11422979. The next prime is 11422991. The reversal of 11422987 is 78922411.

11422987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11422987 - 2³ = 11422979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11422937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711493 + 5711494.

It is an arithmetic number, because the mean of its divisors is an integer number (5711494).

Almost surely, 2^11422987 is an apocalyptic number.

11422987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11422987 is an equidigital number, since it uses as much as digits as its factorization.

11422987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 11422987 is about 3379.7909698678. The cubic root of 11422987 is about 225.2128816481.

The spelling of 11422987 in words is "eleven million, four hundred twenty-two thousand, nine hundred eighty-seven".