523678453 has 2 divisors, whose sum is σ = 523678454. Its totient is φ = 523678452.

The previous prime is 523678429. The next prime is 523678511. The reversal of 523678453 is 354876325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491154244 + 32524209 = 22162^2 + 5703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523678453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523678423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261839226 + 261839227.

It is an arithmetic number, because the mean of its divisors is an integer number (261839227).

Almost surely, 2^523678453 is an apocalyptic number.

It is an amenable number.

523678453 is a deficient number, since it is larger than the sum of its proper divisors (1).

523678453 is an equidigital number, since it uses as much as digits as its factorization.

523678453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 523678453 is about 22884.0217837687. The cubic root of 523678453 is about 806.0368584433.

It can be divided in two parts, 523 and 678453, that added together give a square (678976 = 824²).

The spelling of 523678453 in words is "five hundred twenty-three million, six hundred seventy-eight thousand, four hundred fifty-three".