523690073 has 2 divisors, whose sum is σ = 523690074. Its totient is φ = 523690072.

The previous prime is 523690051. The next prime is 523690081. The reversal of 523690073 is 370096325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519475264 + 4214809 = 22792^2 + 2053^2 .

It is a cyclic number.

It is not a de Polignac number, because 523690073 - 2¹² = 523685977 is a prime.

It is not a weakly prime, because it can be changed into another prime (523690043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261845036 + 261845037.

It is an arithmetic number, because the mean of its divisors is an integer number (261845037).

Almost surely, 2^523690073 is an apocalyptic number.

It is an amenable number.

523690073 is a deficient number, since it is larger than the sum of its proper divisors (1).

523690073 is an equidigital number, since it uses as much as digits as its factorization.

523690073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 523690073 is about 22884.2756712988. The cubic root of 523690073 is about 806.0428201672.

The spelling of 523690073 in words is "five hundred twenty-three million, six hundred ninety thousand, seventy-three".