97620628093 has 2 divisors, whose sum is σ = 97620628094. Its totient is φ = 97620628092.

The previous prime is 97620628081. The next prime is 97620628097. The reversal of 97620628093 is 39082602679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76235075449 + 21385552644 = 276107^2 + 146238^2 .

It is an emirp because it is prime and its reverse (39082602679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97620628093 - 2²⁹ = 97083757181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97620628093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97620628097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48810314046 + 48810314047.

It is an arithmetic number, because the mean of its divisors is an integer number (48810314047).

Almost surely, 2^97620628093 is an apocalyptic number.

It is an amenable number.

97620628093 is a deficient number, since it is larger than the sum of its proper divisors (1).

97620628093 is an equidigital number, since it uses as much as digits as its factorization.

97620628093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 97620628093 in words is "ninety-seven billion, six hundred twenty million, six hundred twenty-eight thousand, ninety-three".