10521670 has 16 divisors (see below), whose sum is σ = 19380240. Its totient is φ = 4110624.

The previous prime is 10521659. The next prime is 10521671. The reversal of 10521670 is 7612501.

It is a super-2 number, since 2×10521670² = 221411079177800, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11805 + ... + 12664.

It is an arithmetic number, because the mean of its divisors is an integer number (1211265).

Almost surely, 2^10521670 is an apocalyptic number.

10521670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10521670 is a deficient number, since it is larger than the sum of its proper divisors (8858570).

10521670 is a wasteful number, since it uses less digits than its factorization.

10521670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24519.

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

The square root of 10521670 is about 3243.7123793579. The cubic root of 10521670 is about 219.1264950364.

The spelling of 10521670 in words is "ten million, five hundred twenty-one thousand, six hundred seventy".