97930402469 has 2 divisors, whose sum is σ = 97930402470. Its totient is φ = 97930402468.

The previous prime is 97930402429. The next prime is 97930402477. The reversal of 97930402469 is 96420403979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82570022500 + 15360379969 = 287350^2 + 123937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97930402469 is a prime.

It is a super-2 number, since 2×97930402469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97930402469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97930402429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48965201234 + 48965201235.

It is an arithmetic number, because the mean of its divisors is an integer number (48965201235).

Almost surely, 2^97930402469 is an apocalyptic number.

It is an amenable number.

97930402469 is a deficient number, since it is larger than the sum of its proper divisors (1).

97930402469 is an equidigital number, since it uses as much as digits as its factorization.

97930402469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 97930402469 in words is "ninety-seven billion, nine hundred thirty million, four hundred two thousand, four hundred sixty-nine".