423555607 has 2 divisors, whose sum is σ = 423555608. Its totient is φ = 423555606.

The previous prime is 423555551. The next prime is 423555617. The reversal of 423555607 is 706555324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423555607 - 2⁷ = 423555479 is a prime.

It is a super-2 number, since 2×423555607² = 358798704442276898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423555617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211777803 + 211777804.

It is an arithmetic number, because the mean of its divisors is an integer number (211777804).

Almost surely, 2^423555607 is an apocalyptic number.

423555607 is a deficient number, since it is larger than the sum of its proper divisors (1).

423555607 is an equidigital number, since it uses as much as digits as its factorization.

423555607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 423555607 is about 20580.4666370809. The cubic root of 423555607 is about 750.9945957154.

The spelling of 423555607 in words is "four hundred twenty-three million, five hundred fifty-five thousand, six hundred seven".