97545823 has 2 divisors, whose sum is σ = 97545824. Its totient is φ = 97545822.

The previous prime is 97545797. The next prime is 97545863. The reversal of 97545823 is 32854579.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97545823 - 2²¹ = 95448671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97545823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97545863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48772911 + 48772912.

It is an arithmetic number, because the mean of its divisors is an integer number (48772912).

Almost surely, 2^97545823 is an apocalyptic number.

97545823 is a deficient number, since it is larger than the sum of its proper divisors (1).

97545823 is an equidigital number, since it uses as much as digits as its factorization.

97545823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 97545823 is about 9876.5288943029. The cubic root of 97545823 is about 460.3302968045.

The spelling of 97545823 in words is "ninety-seven million, five hundred forty-five thousand, eight hundred twenty-three".