10421207 has 2 divisors, whose sum is σ = 10421208. Its totient is φ = 10421206.

The previous prime is 10421143. The next prime is 10421233. The reversal of 10421207 is 70212401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10421207 - 2⁶ = 10421143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10421287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210603 + 5210604.

It is an arithmetic number, because the mean of its divisors is an integer number (5210604).

Almost surely, 2^10421207 is an apocalyptic number.

10421207 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421207 is an equidigital number, since it uses as much as digits as its factorization.

10421207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 10421207 is about 3228.1894306252. The cubic root of 10421207 is about 218.4268423470.

Adding to 10421207 its reverse (70212401), we get a palindrome (80633608).

The spelling of 10421207 in words is "ten million, four hundred twenty-one thousand, two hundred seven".