97180973 has 2 divisors, whose sum is σ = 97180974. Its totient is φ = 97180972.

The previous prime is 97180961. The next prime is 97180987. The reversal of 97180973 is 37908179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91738084 + 5442889 = 9578^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 97180973 - 2¹⁴ = 97164589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97180873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48590486 + 48590487.

It is an arithmetic number, because the mean of its divisors is an integer number (48590487).

Almost surely, 2^97180973 is an apocalyptic number.

It is an amenable number.

97180973 is a deficient number, since it is larger than the sum of its proper divisors (1).

97180973 is an equidigital number, since it uses as much as digits as its factorization.

97180973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 97180973 is about 9858.0410325784. The cubic root of 97180973 is about 459.7556563064.

The spelling of 97180973 in words is "ninety-seven million, one hundred eighty thousand, nine hundred seventy-three".