97650977 has 2 divisors, whose sum is σ = 97650978. Its totient is φ = 97650976.

The previous prime is 97650923. The next prime is 97650991. The reversal of 97650977 is 77905679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57214096 + 40436881 = 7564^2 + 6359^2 .

It is a cyclic number.

It is not a de Polignac number, because 97650977 - 2¹⁰ = 97649953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97659977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48825488 + 48825489.

It is an arithmetic number, because the mean of its divisors is an integer number (48825489).

Almost surely, 2^97650977 is an apocalyptic number.

It is an amenable number.

97650977 is a deficient number, since it is larger than the sum of its proper divisors (1).

97650977 is an equidigital number, since it uses as much as digits as its factorization.

97650977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 833490, while the sum is 50.

The square root of 97650977 is about 9881.8508893830. The cubic root of 97650977 is about 460.4956487977.

The spelling of 97650977 in words is "ninety-seven million, six hundred fifty thousand, nine hundred seventy-seven".