10347021 has 20 divisors (see below), whose sum is σ = 15584800. Its totient is φ = 6840936.

The previous prime is 10347019. The next prime is 10347023. The reversal of 10347021 is 12074301.

10347021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10347019) and next prime (10347023).

It is not a de Polignac number, because 10347021 - 2¹ = 10347019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10346985 and 10347003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10347023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10800 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (779240).

Almost surely, 2^10347021 is an apocalyptic number.

It is an amenable number.

10347021 is a deficient number, since it is larger than the sum of its proper divisors (5237779).

10347021 is an equidigital number, since it uses as much as digits as its factorization.

10347021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 10347021 is about 3216.6785664719. The cubic root of 10347021 is about 217.9072986324.

The spelling of 10347021 in words is "ten million, three hundred forty-seven thousand, twenty-one".