97442173 has 2 divisors, whose sum is σ = 97442174. Its totient is φ = 97442172.

The previous prime is 97442167. The next prime is 97442227. The reversal of 97442173 is 37124479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89813529 + 7628644 = 9477^2 + 2762^2 .

It is a cyclic number.

It is not a de Polignac number, because 97442173 - 2¹⁷ = 97311101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97440173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48721086 + 48721087.

It is an arithmetic number, because the mean of its divisors is an integer number (48721087).

Almost surely, 2^97442173 is an apocalyptic number.

It is an amenable number.

97442173 is a deficient number, since it is larger than the sum of its proper divisors (1).

97442173 is an equidigital number, since it uses as much as digits as its factorization.

97442173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 97442173 is about 9871.2802107933. The cubic root of 97442173 is about 460.1671934771.

It can be divided in two parts, 97 and 442173, that added together give a triangular number (442270 = T₉₄₀).

The spelling of 97442173 in words is "ninety-seven million, four hundred forty-two thousand, one hundred seventy-three".