1395696789 has 6 divisors (see below), whose sum is σ = 2016006486. Its totient is φ = 930464520.

The previous prime is 1395696779. The next prime is 1395696817. The reversal of 1395696789 is 9876965931.

1395696789 is a `hidden beast` number, since 1 + 3 + 9 + 569 + 67 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 814645764 + 581051025 = 28542^2 + 24105^2 .

It is not a de Polignac number, because 1395696789 - 2¹⁵ = 1395664021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395696749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77538702 + ... + 77538719.

It is an arithmetic number, because the mean of its divisors is an integer number (336001081).

Almost surely, 2^1395696789 is an apocalyptic number.

It is an amenable number.

1395696789 is a deficient number, since it is larger than the sum of its proper divisors (620309697).

1395696789 is a wasteful number, since it uses less digits than its factorization.

1395696789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155077427 (or 155077424 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 1395696789 is about 37359.0255360067. The cubic root of 1395696789 is about 1117.5415860686.

The spelling of 1395696789 in words is "one billion, three hundred ninety-five million, six hundred ninety-six thousand, seven hundred eighty-nine".