10678321 has 4 divisors (see below), whose sum is σ = 10694772. Its totient is φ = 10661872.

The previous prime is 10678313. The next prime is 10678331. The reversal of 10678321 is 12387601.

10678321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9150625 + 1527696 = 3025^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 10678321 - 2³ = 10678313 is a prime.

It is a super-2 number, since 2×10678321² = 228053078758082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10678321.

It is not an unprimeable number, because it can be changed into a prime (10678331) 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, 7210 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (2673693).

Almost surely, 2^10678321 is an apocalyptic number.

It is an amenable number.

10678321 is a deficient number, since it is larger than the sum of its proper divisors (16451).

10678321 is an equidigital number, since it uses as much as digits as its factorization.

10678321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16450.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 10678321 is about 3267.7700347485. The cubic root of 10678321 is about 220.2086244145.

The spelling of 10678321 in words is "ten million, six hundred seventy-eight thousand, three hundred twenty-one".