97842401 has 2 divisors, whose sum is σ = 97842402. Its totient is φ = 97842400.

The previous prime is 97842397. The next prime is 97842403. The reversal of 97842401 is 10424879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97318225 + 524176 = 9865^2 + 724^2 .

It is an emirp because it is prime and its reverse (10424879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97842401 - 2² = 97842397 is a prime.

Together with 97842403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97842403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48921200 + 48921201.

It is an arithmetic number, because the mean of its divisors is an integer number (48921201).

Almost surely, 2^97842401 is an apocalyptic number.

It is an amenable number.

97842401 is a deficient number, since it is larger than the sum of its proper divisors (1).

97842401 is an equidigital number, since it uses as much as digits as its factorization.

97842401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 97842401 is about 9891.5317822873. The cubic root of 97842401 is about 460.7963536983.

The spelling of 97842401 in words is "ninety-seven million, eight hundred forty-two thousand, four hundred one".