97680073 has 2 divisors, whose sum is σ = 97680074. Its totient is φ = 97680072.

The previous prime is 97680061. The next prime is 97680097. The reversal of 97680073 is 37008679.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70358544 + 27321529 = 8388^2 + 5227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97680073 is a prime.

It is a super-2 number, since 2×97680073² = 19082793322570658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97680043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48840036 + 48840037.

It is an arithmetic number, because the mean of its divisors is an integer number (48840037).

Almost surely, 2^97680073 is an apocalyptic number.

It is an amenable number.

97680073 is a deficient number, since it is larger than the sum of its proper divisors (1).

97680073 is an equidigital number, since it uses as much as digits as its factorization.

97680073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 97680073 is about 9883.3229735752. The cubic root of 97680073 is about 460.5413805500.

The spelling of 97680073 in words is "ninety-seven million, six hundred eighty thousand, seventy-three".