1377223 has 2 divisors, whose sum is σ = 1377224. Its totient is φ = 1377222.

The previous prime is 1377191. The next prime is 1377269. The reversal of 1377223 is 3227731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1377223 - 2⁵ = 1377191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688611 + 688612.

It is an arithmetic number, because the mean of its divisors is an integer number (688612).

2^1377223 is an apocalyptic number.

1377223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377223 is an equidigital number, since it uses as much as digits as its factorization.

1377223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 25.

The square root of 1377223 is about 1173.5514475301. The cubic root of 1377223 is about 111.2588984171.

It can be divided in two parts, 1377 and 223, that added together give a square (1600 = 40²).

The spelling of 1377223 in words is "one million, three hundred seventy-seven thousand, two hundred twenty-three".