10870521 has 4 divisors (see below), whose sum is σ = 14494032. Its totient is φ = 7247012.

The previous prime is 10870501. The next prime is 10870537. The reversal of 10870521 is 12507801.

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.

It is a cyclic number.

It is not a de Polignac number, because 10870521 - 2⁹ = 10870009 is a prime.

It is a super-2 number, since 2×10870521² = 236336453622882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10870491 and 10870500.

It is not an unprimeable number, because it can be changed into a prime (10870501) 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, 1811751 + ... + 1811756.

It is an arithmetic number, because the mean of its divisors is an integer number (3623508).

Almost surely, 2^10870521 is an apocalyptic number.

It is an amenable number.

10870521 is a deficient number, since it is larger than the sum of its proper divisors (3623511).

10870521 is an equidigital number, since it uses as much as digits as its factorization.

10870521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623510.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 10870521 is about 3297.0473154021. The cubic root of 10870521 is about 221.5219605673.

The spelling of 10870521 in words is "ten million, eight hundred seventy thousand, five hundred twenty-one".