420955607 has 2 divisors, whose sum is σ = 420955608. Its totient is φ = 420955606.

The previous prime is 420955567. The next prime is 420955643. The reversal of 420955607 is 706559024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420955607 - 2⁸ = 420955351 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 (420955657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210477803 + 210477804.

It is an arithmetic number, because the mean of its divisors is an integer number (210477804).

Almost surely, 2^420955607 is an apocalyptic number.

420955607 is a deficient number, since it is larger than the sum of its proper divisors (1).

420955607 is an equidigital number, since it uses as much as digits as its factorization.

420955607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 420955607 is about 20517.2027089465. The cubic root of 420955607 is about 749.4547782589.

The spelling of 420955607 in words is "four hundred twenty million, nine hundred fifty-five thousand, six hundred seven".