1395773 has 2 divisors, whose sum is σ = 1395774.
Its totient is φ = 1395772.
The previous prime is 1395749. The next prime is 1395781. The reversal of 1395773 is 3775931.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 813604 + 582169 = 902^2 + 763^2
It is a cyclic number.
It is not a de Polignac number, because 1395773 - 210 = 1394749 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1395743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697886 + 697887.
It is an arithmetic number, because the mean of its divisors is an integer number (697887).
21395773 is an apocalyptic number.
1395773 is the 632-nd centered heptagonal number.
It is an amenable number.
1395773 is a deficient number, since it is larger than the sum of its proper divisors (1).
1395773 is an equidigital number, since it uses as much as digits as its factorization.
1395773 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 19845, while the sum is 35.
The square root of 1395773 is about 1181.4283727759.
The cubic root of 1395773 is about 111.7561926545.
The spelling of 1395773 in words is "one million, three hundred ninety-five thousand, seven hundred seventy-three".