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992407 = 1397787
BaseRepresentation
bin11110010010010010111
31212102022211
43302102113
5223224112
633134251
711302213
oct3622227
91772284
10992407
11618679
123ba387
13289930
141bb943
151490a7
hexf2497

992407 has 8 divisors (see below), whose sum is σ = 1081136. Its totient is φ = 905472.

The previous prime is 992393. The next prime is 992417. The reversal of 992407 is 704299.

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 992407 - 211 = 990359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (135142).

2992407 is an apocalyptic number.

992407 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

992407 is a deficient number, since it is larger than the sum of its proper divisors (88729).

992407 is a wasteful number, since it uses less digits than its factorization.

992407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 992407 is about 996.1962658031. The cubic root of 992407 is about 99.7462566879.

It can be divided in two parts, 9 and 92407, that added together give a square (92416 = 3042).

The spelling of 992407 in words is "nine hundred ninety-two thousand, four hundred seven".

Divisors: 1 13 97 787 1261 10231 76339 992407