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897471 = 3299719
BaseRepresentation
bin11011011000110111111
31200121002200
43123012333
5212204341
631122543
710425351
oct3330677
91617080
10897471
11563313
12373453
13255663
141950d1
1512adb6
hexdb1bf

897471 has 6 divisors (see below), whose sum is σ = 1296360. Its totient is φ = 598308.

The previous prime is 897469. The next prime is 897473. The reversal of 897471 is 174798.

It is an interprime number because it is at equal distance from previous prime (897469) and next prime (897473).

It is not a de Polignac number, because 897471 - 21 = 897469 is a prime.

It is a super-3 number, since 3×8974713 = 2168615347786854333, which contains 333 as substring.

897471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49851 + ... + 49868.

It is an arithmetic number, because the mean of its divisors is an integer number (216060).

2897471 is an apocalyptic number.

897471 is a deficient number, since it is larger than the sum of its proper divisors (398889).

897471 is a wasteful number, since it uses less digits than its factorization.

897471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99725 (or 99722 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 897471 is about 947.3494603366. The cubic root of 897471 is about 96.4584194490.

It can be divided in two parts, 8974 and 71, that added together give a triangular number (9045 = T134).

The spelling of 897471 in words is "eight hundred ninety-seven thousand, four hundred seventy-one".

Divisors: 1 3 9 99719 299157 897471