56989471 has 8 divisors (see below), whose sum is σ = 71051904. Its totient is φ = 44407320.

The previous prime is 56989453. The next prime is 56989477. The reversal of 56989471 is 17498965.

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-56989471 is a prime.

It is a super-3 number, since 3×56989471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56989477) 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, 369985 + ... + 370138.

It is an arithmetic number, because the mean of its divisors is an integer number (8881488).

Almost surely, 2^56989471 is an apocalyptic number.

56989471 is a deficient number, since it is larger than the sum of its proper divisors (14062433).

56989471 is a wasteful number, since it uses less digits than its factorization.

56989471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740141.

The product of its digits is 544320, while the sum is 49.

The square root of 56989471 is about 7549.1371030072. The cubic root of 56989471 is about 384.8264152542.

It can be divided in two parts, 569894 and 71, that added together give a palindrome (569965).

The spelling of 56989471 in words is "fifty-six million, nine hundred eighty-nine thousand, four hundred seventy-one".