Search a number
-
+
808407 = 3379379
BaseRepresentation
bin11000101010111010111
31112001221000
43011113113
5201332112
625154343
76604605
oct3052727
91461830
10808407
11502406
1232b9b3
13223c62
14170875
1510e7dc
hexc55d7

808407 has 16 divisors (see below), whose sum is σ = 1216000. Its totient is φ = 530712.

The previous prime is 808399. The next prime is 808417. The reversal of 808407 is 704808.

It is a happy number.

It is not a de Polignac number, because 808407 - 23 = 808399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

808407 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808407.

It is not an unprimeable number, because it can be changed into a prime (808417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1944 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (76000).

2808407 is an apocalyptic number.

808407 is a deficient number, since it is larger than the sum of its proper divisors (407593).

808407 is a wasteful number, since it uses less digits than its factorization.

808407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 808407 is about 899.1145644466. The cubic root of 808407 is about 93.1558261686.

The spelling of 808407 in words is "eight hundred eight thousand, four hundred seven".

Divisors: 1 3 9 27 79 237 379 711 1137 2133 3411 10233 29941 89823 269469 808407