97680329 has 2 divisors, whose sum is σ = 97680330. Its totient is φ = 97680328.

The previous prime is 97680307. The next prime is 97680343. The reversal of 97680329 is 92308679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96983104 + 697225 = 9848^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 97680329 - 2⁸ = 97680073 is a prime.

It is a super-3 number, since 3×97680329³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97680329.

It is not a weakly prime, because it can be changed into another prime (97680529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48840164 + 48840165.

It is an arithmetic number, because the mean of its divisors is an integer number (48840165).

Almost surely, 2^97680329 is an apocalyptic number.

It is an amenable number.

97680329 is a deficient number, since it is larger than the sum of its proper divisors (1).

97680329 is an equidigital number, since it uses as much as digits as its factorization.

97680329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 97680329 is about 9883.3359246764. The cubic root of 97680329 is about 460.5417828787.

The spelling of 97680329 in words is "ninety-seven million, six hundred eighty thousand, three hundred twenty-nine".