423535997 has 2 divisors, whose sum is σ = 423535998. Its totient is φ = 423535996.

The previous prime is 423535979. The next prime is 423536023. The reversal of 423535997 is 799535324.

Together with previous prime (423535979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411846436 + 11689561 = 20294^2 + 3419^2 .

It is a cyclic number.

It is not a de Polignac number, because 423535997 - 2⁶ = 423535933 is a prime.

It is a super-3 number, since 3×423535997³ (a number of 27 digits) contains 333 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 (423535967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211767998 + 211767999.

It is an arithmetic number, because the mean of its divisors is an integer number (211767999).

Almost surely, 2^423535997 is an apocalyptic number.

It is an amenable number.

423535997 is a deficient number, since it is larger than the sum of its proper divisors (1).

423535997 is an equidigital number, since it uses as much as digits as its factorization.

423535997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 47.

The square root of 423535997 is about 20579.9902089384. The cubic root of 423535997 is about 750.9830055557.

The spelling of 423535997 in words is "four hundred twenty-three million, five hundred thirty-five thousand, nine hundred ninety-seven".