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1427091 = 3475697
BaseRepresentation
bin101011100011010010011
32200111121020
411130122103
5331131331
650330523
715062421
oct5343223
92614536
101427091
11895216
12589a43
133ac743
14292111
151d2c96
hex15c693

1427091 has 4 divisors (see below), whose sum is σ = 1902792. Its totient is φ = 951392.

The previous prime is 1427089. The next prime is 1427093. The reversal of 1427091 is 1907241.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1427089) and next prime (1427093).

It is a cyclic number.

It is not a de Polignac number, because 1427091 - 21 = 1427089 is a prime.

It is a D-number.

1427091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1427093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237846 + ... + 237851.

It is an arithmetic number, because the mean of its divisors is an integer number (475698).

21427091 is an apocalyptic number.

1427091 is a deficient number, since it is larger than the sum of its proper divisors (475701).

1427091 is an equidigital number, since it uses as much as digits as its factorization.

1427091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475700.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1427091 is about 1194.6091411001. The cubic root of 1427091 is about 112.5858702418.

The spelling of 1427091 in words is "one million, four hundred twenty-seven thousand, ninety-one".

Divisors: 1 3 475697 1427091