10785981 has 8 divisors (see below), whose sum is σ = 14770144. Its totient is φ = 6996240.

The previous prime is 10785953. The next prime is 10785989. The reversal of 10785981 is 18958701.

10785981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10785981 - 2⁹ = 10785469 is a prime.

It is a super-2 number, since 2×10785981² = 232674772264722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10785989) 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, 48475 + ... + 48696.

It is an arithmetic number, because the mean of its divisors is an integer number (1846268).

Almost surely, 2^10785981 is an apocalyptic number.

It is an amenable number.

10785981 is a deficient number, since it is larger than the sum of its proper divisors (3984163).

10785981 is an equidigital number, since it uses as much as digits as its factorization.

10785981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97211.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 10785981 is about 3284.2017294923. The cubic root of 10785981 is about 220.9462069548.

The spelling of 10785981 in words is "ten million, seven hundred eighty-five thousand, nine hundred eighty-one".