1293791 has 2 divisors, whose sum is σ = 1293792. Its totient is φ = 1293790.

The previous prime is 1293763. The next prime is 1293797. The reversal of 1293791 is 1973921.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1293791 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1293797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646895 + 646896.

It is an arithmetic number, because the mean of its divisors is an integer number (646896).

2^1293791 is an apocalyptic number.

1293791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293791 is an equidigital number, since it uses as much as digits as its factorization.

1293791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 1293791 is about 1137.4493395312. The cubic root of 1293791 is about 108.9652555985.

The spelling of 1293791 in words is "one million, two hundred ninety-three thousand, seven hundred ninety-one".