1394777 has 2 divisors, whose sum is σ = 1394778. Its totient is φ = 1394776.

The previous prime is 1394753. The next prime is 1394821. The reversal of 1394777 is 7774931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1394761 + 16 = 1181^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394777 - 2⁶ = 1394713 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1394777.

It is not a weakly prime, because it can be changed into another prime (1394707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697388 + 697389.

It is an arithmetic number, because the mean of its divisors is an integer number (697389).

2^1394777 is an apocalyptic number.

It is an amenable number.

1394777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394777 is an equidigital number, since it uses as much as digits as its factorization.

1394777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37044, while the sum is 38.

The square root of 1394777 is about 1181.0067739010. The cubic root of 1394777 is about 111.7296038862.

The spelling of 1394777 in words is "one million, three hundred ninety-four thousand, seven hundred seventy-seven".