10706521 has 4 divisors (see below), whose sum is σ = 12236032. Its totient is φ = 9177012.

The previous prime is 10706503. The next prime is 10706543. The reversal of 10706521 is 12560701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12560701 = 1637 ⋅7673.

It is a cyclic number.

It is not a de Polignac number, because 10706521 - 2⁵ = 10706489 is a prime.

It is a super-2 number, since 2×10706521² = 229259183846882, 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 = 10706492 and 10706501.

It is not an unprimeable number, because it can be changed into a prime (10706561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764745 + ... + 764758.

It is an arithmetic number, because the mean of its divisors is an integer number (3059008).

Almost surely, 2^10706521 is an apocalyptic number.

It is an amenable number.

10706521 is a deficient number, since it is larger than the sum of its proper divisors (1529511).

10706521 is an equidigital number, since it uses as much as digits as its factorization.

10706521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529510.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 10706521 is about 3272.0820588732. The cubic root of 10706521 is about 220.4023010773.

The spelling of 10706521 in words is "ten million, seven hundred six thousand, five hundred twenty-one".