11421471 has 8 divisors (see below), whose sum is σ = 15286320. Its totient is φ = 7585472.

The previous prime is 11421461. The next prime is 11421481. The reversal of 11421471 is 17412411.

It is an interprime number because it is at equal distance from previous prime (11421461) and next prime (11421481).

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

It is a cyclic number.

It is not a de Polignac number, because 11421471 - 2²² = 7227167 is a prime.

It is a super-3 number, since 3×11421471³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421401) 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, 6270 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (1910790).

Almost surely, 2^11421471 is an apocalyptic number.

11421471 is a deficient number, since it is larger than the sum of its proper divisors (3864849).

11421471 is a wasteful number, since it uses less digits than its factorization.

11421471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425.

The product of its digits is 224, while the sum is 21.

The square root of 11421471 is about 3379.5666882013. The cubic root of 11421471 is about 225.2029181761.

Adding to 11421471 its reverse (17412411), we get a palindrome (28833882).

The spelling of 11421471 in words is "eleven million, four hundred twenty-one thousand, four hundred seventy-one".