420562619 has 2 divisors, whose sum is σ = 420562620. Its totient is φ = 420562618.

The previous prime is 420562603. The next prime is 420562631. The reversal of 420562619 is 916265024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420562619 - 2⁴ = 420562603 is a prime.

It is a super-2 number, since 2×420562619² = 353745833000278322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420561619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210281309 + 210281310.

It is an arithmetic number, because the mean of its divisors is an integer number (210281310).

Almost surely, 2^420562619 is an apocalyptic number.

420562619 is a deficient number, since it is larger than the sum of its proper divisors (1).

420562619 is an equidigital number, since it uses as much as digits as its factorization.

420562619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 420562619 is about 20507.6234361761. The cubic root of 420562619 is about 749.2214849060.

The spelling of 420562619 in words is "four hundred twenty million, five hundred sixty-two thousand, six hundred nineteen".