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1066387 = 733109
BaseRepresentation
bin100000100010110010011
32000011210211
410010112103
5233111022
634504551
712031000
oct4042623
92004724
101066387
11669213
12435157
132b44ca
141da8a7
15160e77
hex104593

1066387 has 8 divisors (see below), whose sum is σ = 1244000. Its totient is φ = 913752.

The previous prime is 1066379. The next prime is 1066399. The reversal of 1066387 is 7836601.

It is not a de Polignac number, because 1066387 - 23 = 1066379 is a prime.

It is a super-2 number, since 2×10663872 = 2274362467538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066327) 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, 1212 + ... + 1897.

It is an arithmetic number, because the mean of its divisors is an integer number (155500).

21066387 is an apocalyptic number.

1066387 is a deficient number, since it is larger than the sum of its proper divisors (177613).

1066387 is an frugal number, since it uses more digits than its factorization.

1066387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1066387 is about 1032.6601570701. The cubic root of 1066387 is about 102.1656605718.

The spelling of 1066387 in words is "one million, sixty-six thousand, three hundred eighty-seven".

Divisors: 1 7 49 343 3109 21763 152341 1066387