97194431 has 2 divisors, whose sum is σ = 97194432. Its totient is φ = 97194430.

The previous prime is 97194347. The next prime is 97194451. The reversal of 97194431 is 13449179.

It is a strong prime.

It is an emirp because it is prime and its reverse (13449179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97194431 - 2¹⁰ = 97193407 is a prime.

It is a super-2 number, since 2×97194431² = 18893514834827522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97194451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48597215 + 48597216.

It is an arithmetic number, because the mean of its divisors is an integer number (48597216).

Almost surely, 2^97194431 is an apocalyptic number.

97194431 is a deficient number, since it is larger than the sum of its proper divisors (1).

97194431 is an equidigital number, since it uses as much as digits as its factorization.

97194431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 97194431 is about 9858.7235989250. The cubic root of 97194431 is about 459.7768782453.

The spelling of 97194431 in words is "ninety-seven million, one hundred ninety-four thousand, four hundred thirty-one".