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8392397 = 1329113197
BaseRepresentation
bin100000000000…
…111011001101
3120210101012112
4200000323031
54122024042
6455513405
7131222426
oct40007315
916711175
108392397
114812372
122988865
13197ac20
14118664d
15b0b982
hex800ecd

8392397 has 16 divisors (see below), whose sum is σ = 9480240. Its totient is φ = 7375872.

The previous prime is 8392387. The next prime is 8392411. The reversal of 8392397 is 7932938.

It can be written as a sum of positive squares in 8 ways, for example, as 292681 + 8099716 = 541^2 + 2846^2 .

It is a cyclic number.

It is not a de Polignac number, because 8392397 - 26 = 8392333 is a prime.

It is a d-powerful number, because it can be written as 83 + 36 + 9 + 223 + 37 + 9 + 73 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8392327) 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, 42503 + ... + 42699.

It is an arithmetic number, because the mean of its divisors is an integer number (592515).

Almost surely, 28392397 is an apocalyptic number.

It is an amenable number.

8392397 is a deficient number, since it is larger than the sum of its proper divisors (1087843).

8392397 is a wasteful number, since it uses less digits than its factorization.

8392397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352.

The product of its digits is 81648, while the sum is 41.

The square root of 8392397 is about 2896.9634101935. The cubic root of 8392397 is about 203.2179222030.

The spelling of 8392397 in words is "eight million, three hundred ninety-two thousand, three hundred ninety-seven".

Divisors: 1 13 29 113 197 377 1469 2561 3277 5713 22261 42601 74269 289393 645569 8392397