97980049 has 2 divisors, whose sum is σ = 97980050. Its totient is φ = 97980048.

The previous prime is 97980031. The next prime is 97980053. The reversal of 97980049 is 94008979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60341824 + 37638225 = 7768^2 + 6135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97980049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97979990 and 97980008.

It is not a weakly prime, because it can be changed into another prime (97980019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48990024 + 48990025.

It is an arithmetic number, because the mean of its divisors is an integer number (48990025).

Almost surely, 2^97980049 is an apocalyptic number.

It is an amenable number.

97980049 is a deficient number, since it is larger than the sum of its proper divisors (1).

97980049 is an equidigital number, since it uses as much as digits as its factorization.

97980049 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 46.

The square root of 97980049 is about 9898.4872076495. The cubic root of 97980049 is about 461.0123404109.

The spelling of 97980049 in words is "ninety-seven million, nine hundred eighty thousand, forty-nine".