1082769985 has 8 divisors (see below), whose sum is σ = 1417444416. Its totient is φ = 787469040.

The previous prime is 1082769983. The next prime is 1082769997. The reversal of 1082769985 is 5899672801.

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

It is not a de Polignac number, because 1082769985 - 2¹ = 1082769983 is a prime.

It is a super-3 number, since 3×1082769985³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 19686727 = 1082769985 / (1 + 0 + 8 + 2 + 7 + 6 + 9 + 9 + 8 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082769983) 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, 9843309 + ... + 9843418.

It is an arithmetic number, because the mean of its divisors is an integer number (177180552).

Almost surely, 2^1082769985 is an apocalyptic number.

It is an amenable number.

1082769985 is a deficient number, since it is larger than the sum of its proper divisors (334674431).

1082769985 is a wasteful number, since it uses less digits than its factorization.

1082769985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19686743.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The square root of 1082769985 is about 32905.4704418581. The cubic root of 1082769985 is about 1026.8619687463.

The spelling of 1082769985 in words is "one billion, eighty-two million, seven hundred sixty-nine thousand, nine hundred eighty-five".