1358779 has 2 divisors, whose sum is σ = 1358780. Its totient is φ = 1358778.

The previous prime is 1358743. The next prime is 1358783. The reversal of 1358779 is 9778531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1358779 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (1358729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679389 + 679390.

It is an arithmetic number, because the mean of its divisors is an integer number (679390).

2^1358779 is an apocalyptic number.

1358779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358779 is an equidigital number, since it uses as much as digits as its factorization.

1358779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 1358779 is about 1165.6667619865. Note that the first 3 decimals coincide. The cubic root of 1358779 is about 110.7599987236.

The spelling of 1358779 in words is "one million, three hundred fifty-eight thousand, seven hundred seventy-nine".