1086859389 has 48 divisors (see below), whose sum is σ = 1825994240. Its totient is φ = 562874400.

The previous prime is 1086859379. The next prime is 1086859391. The reversal of 1086859389 is 9839586801.

It is not a de Polignac number, because 1086859389 - 2⁴ = 1086859373 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086859339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1572534 + ... + 1573224.

Almost surely, 2^1086859389 is an apocalyptic number.

It is an amenable number.

1086859389 is a deficient number, since it is larger than the sum of its proper divisors (739134851).

1086859389 is a wasteful number, since it uses less digits than its factorization.

1086859389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The square root of 1086859389 is about 32967.5505459535. The cubic root of 1086859389 is about 1028.1530948972.

The spelling of 1086859389 in words is "one billion, eighty-six million, eight hundred fifty-nine thousand, three hundred eighty-nine".