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8507397 = 313272137
BaseRepresentation
bin100000011101…
…000000000101
3121000012221210
4200131000011
54134214042
6502202033
7132211623
oct40350005
917005853
108507397
114890808
122a23319
1319bb382
1411b6513
15b30a9c
hex81d005

8507397 has 8 divisors (see below), whose sum is σ = 11357056. Its totient is φ = 5664672.

The previous prime is 8507371. The next prime is 8507407. The reversal of 8507397 is 7937058.

8507397 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 not a de Polignac number, because 8507397 - 210 = 8506373 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 (8507357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2913 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (1419632).

Almost surely, 28507397 is an apocalyptic number.

It is an amenable number.

8507397 is a deficient number, since it is larger than the sum of its proper divisors (2849659).

8507397 is a wasteful number, since it uses less digits than its factorization.

8507397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 8507397 is about 2916.7442465873. The cubic root of 8507397 is about 204.1419379370.

The spelling of 8507397 in words is "eight million, five hundred seven thousand, three hundred ninety-seven".

Divisors: 1 3 1327 2137 3981 6411 2835799 8507397