420000629 has 2 divisors, whose sum is σ = 420000630. Its totient is φ = 420000628.

The previous prime is 420000619. The next prime is 420000641. The reversal of 420000629 is 926000024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281467729 + 138532900 = 16777^2 + 11770^2 .

It is a cyclic number.

It is not a de Polignac number, because 420000629 - 2⁴ = 420000613 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 (420000619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210000314 + 210000315.

It is an arithmetic number, because the mean of its divisors is an integer number (210000315).

Almost surely, 2^420000629 is an apocalyptic number.

It is an amenable number.

420000629 is a deficient number, since it is larger than the sum of its proper divisors (1).

420000629 is an equidigital number, since it uses as much as digits as its factorization.

420000629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 420000629 is about 20493.9168779421. The cubic root of 420000629 is about 748.8876125709.

The spelling of 420000629 in words is "four hundred twenty million, six hundred twenty-nine", and thus it is an aban number.