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8097649 = 71156807
BaseRepresentation
bin11110111000111101110001
3120020101212221
4132320331301
54033111044
6445321041
7125554210
oct36707561
916211787
108097649
11463097a
122866181
1318a6a11
14110b077
15a9e484
hex7b8f71

8097649 has 4 divisors (see below), whose sum is σ = 9254464. Its totient is φ = 6940836.

The previous prime is 8097643. The next prime is 8097697. The reversal of 8097649 is 9467908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8097649 - 27 = 8097521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8097643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578397 + ... + 578410.

It is an arithmetic number, because the mean of its divisors is an integer number (2313616).

Almost surely, 28097649 is an apocalyptic number.

It is an amenable number.

8097649 is a deficient number, since it is larger than the sum of its proper divisors (1156815).

8097649 is a wasteful number, since it uses less digits than its factorization.

8097649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156814.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 8097649 is about 2845.6368355783. The cubic root of 8097649 is about 200.8104530597.

The spelling of 8097649 in words is "eight million, ninety-seven thousand, six hundred forty-nine".

Divisors: 1 7 1156807 8097649