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1379491 is a prime number
BaseRepresentation
bin101010000110010100011
32121002022021
411100302203
5323120431
645322311
714503561
oct5206243
92532267
101379491
11862483
12566397
13393b89
1427ca31
151c3b11
hex150ca3

1379491 has 2 divisors, whose sum is σ = 1379492. Its totient is φ = 1379490.

The previous prime is 1379489. The next prime is 1379503. The reversal of 1379491 is 1949731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1379491 - 21 = 1379489 is a prime.

Together with 1379489, it forms a pair of twin primes.

1379491 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1379461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689745 + 689746.

It is an arithmetic number, because the mean of its divisors is an integer number (689746).

21379491 is an apocalyptic number.

1379491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379491 is an equidigital number, since it uses as much as digits as its factorization.

1379491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 34.

The square root of 1379491 is about 1174.5173476795. The cubic root of 1379491 is about 111.3199383489.

The spelling of 1379491 in words is "one million, three hundred seventy-nine thousand, four hundred ninety-one".