10521671 has 2 divisors, whose sum is σ = 10521672. Its totient is φ = 10521670.

The previous prime is 10521659. The next prime is 10521673. The reversal of 10521671 is 17612501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10521671 - 2⁶ = 10521607 is a prime.

It is a super-2 number, since 2×10521671² = 221411121264482, which contains 22 as substring.

Together with 10521673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10521673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260835 + 5260836.

It is an arithmetic number, because the mean of its divisors is an integer number (5260836).

Almost surely, 2^10521671 is an apocalyptic number.

10521671 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521671 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 9 representation: 10521671 = (21716015)₉.

10521671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 10521671 is about 3243.7125335023. The cubic root of 10521671 is about 219.1265019785.

The spelling of 10521671 in words is "ten million, five hundred twenty-one thousand, six hundred seventy-one".