5656471 has 8 divisors (see below), whose sum is σ = 5976320. Its totient is φ = 5338872.

The previous prime is 5656463. The next prime is 5656481. The reversal of 5656471 is 1746565.

It is a happy number.

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 5656471 - 2³ = 5656463 is a prime.

It is a super-3 number, since 3×5656471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

5656471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5656411) 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, 8476 + ... + 9118.

It is an arithmetic number, because the mean of its divisors is an integer number (747040).

Almost surely, 2^5656471 is an apocalyptic number.

5656471 is a deficient number, since it is larger than the sum of its proper divisors (319849).

5656471 is a wasteful number, since it uses less digits than its factorization.

5656471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its digits is 25200, while the sum is 34.

The square root of 5656471 is about 2378.3336603597. Note that the first 3 decimals coincide. The cubic root of 5656471 is about 178.1757196697.

The spelling of 5656471 in words is "five million, six hundred fifty-six thousand, four hundred seventy-one".