10713781 has 4 divisors (see below), whose sum is σ = 11537932. Its totient is φ = 9889632.

The previous prime is 10713779. The next prime is 10713797. The reversal of 10713781 is 18731701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 7789681 = 1710^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 10713781 - 2¹ = 10713779 is a prime.

It is a super-2 number, since 2×10713781² = 229570206631922, 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 (10713761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412056 + ... + 412081.

It is an arithmetic number, because the mean of its divisors is an integer number (2884483).

Almost surely, 2^10713781 is an apocalyptic number.

It is an amenable number.

10713781 is a deficient number, since it is larger than the sum of its proper divisors (824151).

10713781 is an equidigital number, since it uses as much as digits as its factorization.

10713781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824150.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 10713781 is about 3273.1912562513. The cubic root of 10713781 is about 220.4521074575.

The spelling of 10713781 in words is "ten million, seven hundred thirteen thousand, seven hundred eighty-one".