109680497 has 2 divisors, whose sum is σ = 109680498. Its totient is φ = 109680496.

The previous prime is 109680463. The next prime is 109680499. The reversal of 109680497 is 794086901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94556176 + 15124321 = 9724^2 + 3889^2 .

It is an emirp because it is prime and its reverse (794086901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109680497 - 2¹⁰ = 109679473 is a prime.

It is a super-2 number, since 2×109680497² = 24059622844334018, which contains 22 as substring.

Together with 109680499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109680499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54840248 + 54840249.

It is an arithmetic number, because the mean of its divisors is an integer number (54840249).

Almost surely, 2^109680497 is an apocalyptic number.

It is an amenable number.

109680497 is a deficient number, since it is larger than the sum of its proper divisors (1).

109680497 is an equidigital number, since it uses as much as digits as its factorization.

109680497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 109680497 is about 10472.8456973260. The cubic root of 109680497 is about 478.6776349207.

It can be divided in two parts, 1096804 and 97, that added together give a palindrome (1096901).

The spelling of 109680497 in words is "one hundred nine million, six hundred eighty thousand, four hundred ninety-seven".