10685539 has 4 divisors (see below), whose sum is σ = 10767240. Its totient is φ = 10603840.

The previous prime is 10685533. The next prime is 10685551. The reversal of 10685539 is 93558601.

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

It is a cyclic number.

It is not a de Polignac number, because 10685539 - 2¹⁹ = 10161251 is a prime.

It is a super-2 number, since 2×10685539² = 228361487441042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10685498 and 10685507.

It is not an unprimeable number, because it can be changed into a prime (10685533) 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, 40654 + ... + 40915.

It is an arithmetic number, because the mean of its divisors is an integer number (2691810).

Almost surely, 2^10685539 is an apocalyptic number.

10685539 is a deficient number, since it is larger than the sum of its proper divisors (81701).

10685539 is an equidigital number, since it uses as much as digits as its factorization.

10685539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81700.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 10685539 is about 3268.8742710603. The cubic root of 10685539 is about 220.2582298363.

The spelling of 10685539 in words is "ten million, six hundred eighty-five thousand, five hundred thirty-nine".