97198643 has 2 divisors, whose sum is σ = 97198644. Its totient is φ = 97198642.

The previous prime is 97198637. The next prime is 97198649. The reversal of 97198643 is 34689179.

It is a balanced prime because it is at equal distance from previous prime (97198637) and next prime (97198649).

It is a cyclic number.

It is not a de Polignac number, because 97198643 - 2²² = 93004339 is a prime.

It is not a weakly prime, because it can be changed into another prime (97198649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48599321 + 48599322.

It is an arithmetic number, because the mean of its divisors is an integer number (48599322).

Almost surely, 2^97198643 is an apocalyptic number.

97198643 is a deficient number, since it is larger than the sum of its proper divisors (1).

97198643 is an equidigital number, since it uses as much as digits as its factorization.

97198643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 97198643 is about 9858.9372145277. The cubic root of 97198643 is about 459.7835197515.

The spelling of 97198643 in words is "ninety-seven million, one hundred ninety-eight thousand, six hundred forty-three".