1387269589 has 8 divisors (see below), whose sum is σ = 1407399192. Its totient is φ = 1367170560.

The previous prime is 1387269509. The next prime is 1387269593. The reversal of 1387269589 is 9859627831.

It can be written as a sum of positive squares in 4 ways, for example, as 537080625 + 850188964 = 23175^2 + 29158^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1387269589 - 2¹³ = 1387261397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387269509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93309 + ... + 107149.

It is an arithmetic number, because the mean of its divisors is an integer number (175924899).

Almost surely, 2^1387269589 is an apocalyptic number.

It is an amenable number.

1387269589 is a deficient number, since it is larger than the sum of its proper divisors (20129603).

1387269589 is a wasteful number, since it uses less digits than its factorization.

1387269589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15287.

The product of its digits is 6531840, while the sum is 58.

The square root of 1387269589 is about 37246.0681012104. The cubic root of 1387269589 is about 1115.2878097676.

The spelling of 1387269589 in words is "one billion, three hundred eighty-seven million, two hundred sixty-nine thousand, five hundred eighty-nine".