97867439 has 2 divisors, whose sum is σ = 97867440. Its totient is φ = 97867438.

The previous prime is 97867417. The next prime is 97867459. The reversal of 97867439 is 93476879.

It is a strong prime.

It is an emirp because it is prime and its reverse (93476879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97867439 - 2¹² = 97863343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97867409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48933719 + 48933720.

It is an arithmetic number, because the mean of its divisors is an integer number (48933720).

Almost surely, 2^97867439 is an apocalyptic number.

97867439 is a deficient number, since it is larger than the sum of its proper divisors (1).

97867439 is an equidigital number, since it uses as much as digits as its factorization.

97867439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 53.

The square root of 97867439 is about 9892.7973293705. The cubic root of 97867439 is about 460.8356564783.

The spelling of 97867439 in words is "ninety-seven million, eight hundred sixty-seven thousand, four hundred thirty-nine".