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7897023 = 328271061
BaseRepresentation
bin11110000111111110111111
3112212012200100
4132013332333
54010201043
6441132143
7124060251
oct36077677
915765610
107897023
114504172
12278a053
1318365c4
141097cd1
15a5ecd3
hex787fbf

7897023 has 12 divisors (see below), whose sum is σ = 11431368. Its totient is φ = 5253360.

The previous prime is 7897013. The next prime is 7897031. The reversal of 7897023 is 3207987.

7897023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7897023 - 25 = 7896991 is a prime.

7897023 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7897003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6913 + ... + 7973.

It is an arithmetic number, because the mean of its divisors is an integer number (952614).

Almost surely, 27897023 is an apocalyptic number.

7897023 is a deficient number, since it is larger than the sum of its proper divisors (3534345).

7897023 is a wasteful number, since it uses less digits than its factorization.

7897023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7897023 is about 2810.1642300762. The cubic root of 7897023 is about 199.1381497387.

Subtracting from 7897023 its sum of digits (36), we obtain a palindrome (7896987).

The spelling of 7897023 in words is "seven million, eight hundred ninety-seven thousand, twenty-three".

Divisors: 1 3 9 827 1061 2481 3183 7443 9549 877447 2632341 7897023