97943533 has 2 divisors, whose sum is σ = 97943534. Its totient is φ = 97943532.

The previous prime is 97943501. The next prime is 97943557. The reversal of 97943533 is 33534979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82047364 + 15896169 = 9058^2 + 3987^2 .

It is an emirp because it is prime and its reverse (33534979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97943533 - 2⁵ = 97943501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97943533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97943333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48971766 + 48971767.

It is an arithmetic number, because the mean of its divisors is an integer number (48971767).

Almost surely, 2^97943533 is an apocalyptic number.

It is an amenable number.

97943533 is a deficient number, since it is larger than the sum of its proper divisors (1).

97943533 is an equidigital number, since it uses as much as digits as its factorization.

97943533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 43.

The square root of 97943533 is about 9896.6425114783. The cubic root of 97943533 is about 460.9550620209.

The spelling of 97943533 in words is "ninety-seven million, nine hundred forty-three thousand, five hundred thirty-three".