97772875229 has 2 divisors, whose sum is σ = 97772875230. Its totient is φ = 97772875228.

The previous prime is 97772875153. The next prime is 97772875241. The reversal of 97772875229 is 92257827779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66690480025 + 31082395204 = 258245^2 + 176302^2 .

It is a cyclic number.

It is not a de Polignac number, because 97772875229 - 2⁸ = 97772874973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97772875259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48886437614 + 48886437615.

It is an arithmetic number, because the mean of its divisors is an integer number (48886437615).

Almost surely, 2^97772875229 is an apocalyptic number.

It is an amenable number.

97772875229 is a deficient number, since it is larger than the sum of its proper divisors (1).

97772875229 is an equidigital number, since it uses as much as digits as its factorization.

97772875229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62233920, while the sum is 65.

The spelling of 97772875229 in words is "ninety-seven billion, seven hundred seventy-two million, eight hundred seventy-five thousand, two hundred twenty-nine".