10684821 has 32 divisors (see below), whose sum is σ = 17459200. Its totient is φ = 5676480.

The previous prime is 10684799. The next prime is 10684837. The reversal of 10684821 is 12848601.

10684821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10684821 - 2⁷ = 10684693 is a prime.

It is a super-2 number, since 2×10684821² = 228330799604082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10684871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24120 + ... + 24558.

It is an arithmetic number, because the mean of its divisors is an integer number (545600).

Almost surely, 2^10684821 is an apocalyptic number.

It is an amenable number.

10684821 is a deficient number, since it is larger than the sum of its proper divisors (6774379).

10684821 is a wasteful number, since it uses less digits than its factorization.

10684821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 10684821 is about 3268.7644454748. The cubic root of 10684821 is about 220.2532964102.

The spelling of 10684821 in words is "ten million, six hundred eighty-four thousand, eight hundred twenty-one".