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670497 = 31713147
BaseRepresentation
bin10100011101100100001
31021001202020
42203230201
5132423442
622212053
75461542
oct2435441
91231666
10670497
11418833
12284029
131a6259
141364c9
15d39ec
hexa3b21

670497 has 8 divisors (see below), whose sum is σ = 946656. Its totient is φ = 420672.

The previous prime is 670493. The next prime is 670507. The reversal of 670497 is 794076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 670497 - 22 = 670493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670493) 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, 6523 + ... + 6624.

It is an arithmetic number, because the mean of its divisors is an integer number (118332).

2670497 is an apocalyptic number.

It is an amenable number.

670497 is a deficient number, since it is larger than the sum of its proper divisors (276159).

670497 is a wasteful number, since it uses less digits than its factorization.

670497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 670497 is about 818.8388119771. The cubic root of 670497 is about 87.5250322938.

The spelling of 670497 in words is "six hundred seventy thousand, four hundred ninety-seven".

Divisors: 1 3 17 51 13147 39441 223499 670497