11172471 has 4 divisors (see below), whose sum is σ = 14896632. Its totient is φ = 7448312.

The previous prime is 11172463. The next prime is 11172479. The reversal of 11172471 is 17427111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11172463) and next prime (11172479).

It is a cyclic number.

It is not a de Polignac number, because 11172471 - 2³ = 11172463 is a prime.

It is a super-3 number, since 3×11172471³ (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 (11172479) 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, 1862076 + ... + 1862081.

It is an arithmetic number, because the mean of its divisors is an integer number (3724158).

Almost surely, 2^11172471 is an apocalyptic number.

11172471 is a deficient number, since it is larger than the sum of its proper divisors (3724161).

11172471 is an equidigital number, since it uses as much as digits as its factorization.

11172471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724160.

The product of its digits is 392, while the sum is 24.

The square root of 11172471 is about 3342.5246446361. The cubic root of 11172471 is about 223.5543261880.

Adding to 11172471 its reverse (17427111), we get a palindrome (28599582).

The spelling of 11172471 in words is "eleven million, one hundred seventy-two thousand, four hundred seventy-one".