11957471 has 8 divisors (see below), whose sum is σ = 12214800. Its totient is φ = 11702080.

The previous prime is 11957461. The next prime is 11957501. The reversal of 11957471 is 17475911.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11957471 is a prime.

It is a super-3 number, since 3×11957471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11957461) 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, 22691 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (1526850).

Almost surely, 2^11957471 is an apocalyptic number.

11957471 is a deficient number, since it is larger than the sum of its proper divisors (257329).

11957471 is an equidigital number, since it uses as much as digits as its factorization.

11957471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its digits is 8820, while the sum is 35.

The square root of 11957471 is about 3457.9576342113. The cubic root of 11957471 is about 228.6720641863.

The spelling of 11957471 in words is "eleven million, nine hundred fifty-seven thousand, four hundred seventy-one".