97816547 has 2 divisors, whose sum is σ = 97816548. Its totient is φ = 97816546.

The previous prime is 97816531. The next prime is 97816553. The reversal of 97816547 is 74561879.

It is a strong prime.

97816547 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 97816547 - 2⁴ = 97816531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97816517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48908273 + 48908274.

It is an arithmetic number, because the mean of its divisors is an integer number (48908274).

Almost surely, 2^97816547 is an apocalyptic number.

97816547 is a deficient number, since it is larger than the sum of its proper divisors (1).

97816547 is an equidigital number, since it uses as much as digits as its factorization.

97816547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 47.

The square root of 97816547 is about 9890.2248204983. The cubic root of 97816547 is about 460.7557629854.

The spelling of 97816547 in words is "ninety-seven million, eight hundred sixteen thousand, five hundred forty-seven".