523423973 has 2 divisors, whose sum is σ = 523423974. Its totient is φ = 523423972.

The previous prime is 523423969. The next prime is 523423997. The reversal of 523423973 is 379324325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472758049 + 50665924 = 21743^2 + 7118^2 .

It is a cyclic number.

It is not a de Polignac number, because 523423973 - 2² = 523423969 is a prime.

It is a super-2 number, since 2×523423973² = 547945311022209458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523423963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261711986 + 261711987.

It is an arithmetic number, because the mean of its divisors is an integer number (261711987).

Almost surely, 2^523423973 is an apocalyptic number.

It is an amenable number.

523423973 is a deficient number, since it is larger than the sum of its proper divisors (1).

523423973 is an equidigital number, since it uses as much as digits as its factorization.

523423973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 38.

The square root of 523423973 is about 22878.4608966600. The cubic root of 523423973 is about 805.9062735437.

The spelling of 523423973 in words is "five hundred twenty-three million, four hundred twenty-three thousand, nine hundred seventy-three".