97799543 has 2 divisors, whose sum is σ = 97799544. Its totient is φ = 97799542.

The previous prime is 97799497. The next prime is 97799557. The reversal of 97799543 is 34599779.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97799543 - 2¹⁴ = 97783159 is a prime.

It is a super-2 number, since 2×97799543² = 19129501222017698, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97799573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48899771 + 48899772.

It is an arithmetic number, because the mean of its divisors is an integer number (48899772).

Almost surely, 2^97799543 is an apocalyptic number.

97799543 is a deficient number, since it is larger than the sum of its proper divisors (1).

97799543 is an equidigital number, since it uses as much as digits as its factorization.

97799543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 53.

The square root of 97799543 is about 9889.3651464591. The cubic root of 97799543 is about 460.7290628504.

The spelling of 97799543 in words is "ninety-seven million, seven hundred ninety-nine thousand, five hundred forty-three".