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8438349 = 39772879
BaseRepresentation
bin100000001100…
…001001001101
3120212201020110
4200030021031
54130011344
6500510233
7131503413
oct40141115
916781213
108438349
114843947
1229ab379
131995b0a
1411992b3
15b1a3b9
hex80c24d

8438349 has 8 divisors (see below), whose sum is σ = 11266560. Its totient is φ = 5617856.

The previous prime is 8438329. The next prime is 8438351. The reversal of 8438349 is 9438348.

8438349 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 8438349 - 28 = 8438093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1492 + ... + 4370.

It is an arithmetic number, because the mean of its divisors is an integer number (1408320).

Almost surely, 28438349 is an apocalyptic number.

It is an amenable number.

8438349 is a deficient number, since it is larger than the sum of its proper divisors (2828211).

8438349 is a wasteful number, since it uses less digits than its factorization.

8438349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859.

The product of its digits is 82944, while the sum is 39.

The square root of 8438349 is about 2904.8836465511. The cubic root of 8438349 is about 203.5881492839.

Subtracting 8438349 from its reverse (9438348), we obtain a palindrome (999999).

The spelling of 8438349 in words is "eight million, four hundred thirty-eight thousand, three hundred forty-nine".

Divisors: 1 3 977 2879 2931 8637 2812783 8438349