11421087 has 8 divisors (see below), whose sum is σ = 15890304. Its totient is φ = 7282968.

The previous prime is 11421079. The next prime is 11421119. The reversal of 11421087 is 78012411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11421087 - 2³ = 11421079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82693 + ... + 82830.

It is an arithmetic number, because the mean of its divisors is an integer number (1986288).

Almost surely, 2^11421087 is an apocalyptic number.

11421087 is a deficient number, since it is larger than the sum of its proper divisors (4469217).

11421087 is a wasteful number, since it uses less digits than its factorization.

11421087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165549.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 11421087 is about 3379.5098757068. The cubic root of 11421087 is about 225.2003943071.

Adding to 11421087 its reverse (78012411), we get a palindrome (89433498).

The spelling of 11421087 in words is "eleven million, four hundred twenty-one thousand, eighty-seven".