1493279 has 2 divisors, whose sum is σ = 1493280. Its totient is φ = 1493278.

The previous prime is 1493273. The next prime is 1493281. The reversal of 1493279 is 9723941.

It is a strong prime.

It is an emirp because it is prime and its reverse (9723941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1493279 is a prime.

It is a Sophie Germain prime.

Together with 1493281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1493273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746639 + 746640.

It is an arithmetic number, because the mean of its divisors is an integer number (746640).

2^1493279 is an apocalyptic number.

1493279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493279 is an equidigital number, since it uses as much as digits as its factorization.

1493279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 1493279 is about 1221.9979541718. The cubic root of 1493279 is about 114.3001988338.

The spelling of 1493279 in words is "one million, four hundred ninety-three thousand, two hundred seventy-nine".