423526997 has 2 divisors, whose sum is σ = 423526998. Its totient is φ = 423526996.

The previous prime is 423526963. The next prime is 423527003. The reversal of 423526997 is 799625324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411318961 + 12208036 = 20281^2 + 3494^2 .

It is a cyclic number.

It is not a de Polignac number, because 423526997 - 2¹⁶ = 423461461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423526907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211763498 + 211763499.

It is an arithmetic number, because the mean of its divisors is an integer number (211763499).

Almost surely, 2^423526997 is an apocalyptic number.

It is an amenable number.

423526997 is a deficient number, since it is larger than the sum of its proper divisors (1).

423526997 is an equidigital number, since it uses as much as digits as its factorization.

423526997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 47.

The square root of 423526997 is about 20579.7715487806. The cubic root of 423526997 is about 750.9776861378.

The spelling of 423526997 in words is "four hundred twenty-three million, five hundred twenty-six thousand, nine hundred ninety-seven".