10370021 has 4 divisors (see below), whose sum is σ = 10403052. Its totient is φ = 10336992.

The previous prime is 10370011. The next prime is 10370039. The reversal of 10370021 is 12007301.

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 2608225 + 7761796 = 1615^2 + 2786^2 .

It is a cyclic number.

It is not a de Polignac number, because 10370021 - 2²² = 6175717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10369978 and 10370005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10370011) 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, 16040 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (2600763).

Almost surely, 2^10370021 is an apocalyptic number.

It is an amenable number.

10370021 is a deficient number, since it is larger than the sum of its proper divisors (33031).

10370021 is an equidigital number, since it uses as much as digits as its factorization.

10370021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33030.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 10370021 is about 3220.2516982373. The cubic root of 10370021 is about 218.0686384320.

Adding to 10370021 its reverse (12007301), we get a palindrome (22377322).

The spelling of 10370021 in words is "ten million, three hundred seventy thousand, twenty-one".