1386774589 has 2 divisors, whose sum is σ = 1386774590. Its totient is φ = 1386774588.

The previous prime is 1386774583. The next prime is 1386774617. The reversal of 1386774589 is 9854776831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703840900 + 682933689 = 26530^2 + 26133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386774589 is a prime.

It is a super-2 number, since 2×1386774589² = 3846287521392237842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386774583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693387294 + 693387295.

It is an arithmetic number, because the mean of its divisors is an integer number (693387295).

Almost surely, 2^1386774589 is an apocalyptic number.

It is an amenable number.

1386774589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386774589 is an equidigital number, since it uses as much as digits as its factorization.

1386774589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 58.

The square root of 1386774589 is about 37239.4225116341. The cubic root of 1386774589 is about 1115.1551431382.

The spelling of 1386774589 in words is "one billion, three hundred eighty-six million, seven hundred seventy-four thousand, five hundred eighty-nine".