97620628097 has 2 divisors, whose sum is σ = 97620628098. Its totient is φ = 97620628096.

The previous prime is 97620628093. The next prime is 97620628111. The reversal of 97620628097 is 79082602679.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83010829456 + 14609798641 = 288116^2 + 120871^2 .

It is a cyclic number.

It is not a de Polignac number, because 97620628097 - 2² = 97620628093 is a prime.

It is not a weakly prime, because it can be changed into another prime (97620628093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48810314048 + 48810314049.

It is an arithmetic number, because the mean of its divisors is an integer number (48810314049).

Almost surely, 2^97620628097 is an apocalyptic number.

It is an amenable number.

97620628097 is a deficient number, since it is larger than the sum of its proper divisors (1).

97620628097 is an equidigital number, since it uses as much as digits as its factorization.

97620628097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 97620628097 in words is "ninety-seven billion, six hundred twenty million, six hundred twenty-eight thousand, ninety-seven".