10819985 has 8 divisors (see below), whose sum is σ = 14164416. Its totient is φ = 7869040.

The previous prime is 10819979. The next prime is 10820009. The reversal of 10819985 is 58991801.

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

It is not a de Polignac number, because 10819985 - 2¹⁴ = 10803601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98309 + ... + 98418.

It is an arithmetic number, because the mean of its divisors is an integer number (1770552).

Almost surely, 2^10819985 is an apocalyptic number.

It is an amenable number.

10819985 is a deficient number, since it is larger than the sum of its proper divisors (3344431).

10819985 is a wasteful number, since it uses less digits than its factorization.

10819985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196743.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 10819985 is about 3289.3745606118. The cubic root of 10819985 is about 221.1781491822.

The spelling of 10819985 in words is "ten million, eight hundred nineteen thousand, nine hundred eighty-five".