457021207 has 2 divisors, whose sum is σ = 457021208. Its totient is φ = 457021206.

The previous prime is 457021163. The next prime is 457021267. The reversal of 457021207 is 702120754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457021207 - 2¹⁹ = 456496919 is a prime.

It is a Chen prime.

It is equal to p_24205465 and since 457021207 and 24205465 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457021267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228510603 + 228510604.

It is an arithmetic number, because the mean of its divisors is an integer number (228510604).

Almost surely, 2^457021207 is an apocalyptic number.

457021207 is a deficient number, since it is larger than the sum of its proper divisors (1).

457021207 is an equidigital number, since it uses as much as digits as its factorization.

457021207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 457021207 is about 21378.0543314868. The cubic root of 457021207 is about 770.2743762732.

The spelling of 457021207 in words is "four hundred fifty-seven million, twenty-one thousand, two hundred seven".