97650647 has 2 divisors, whose sum is σ = 97650648. Its totient is φ = 97650646.

The previous prime is 97650613. The next prime is 97650649. The reversal of 97650647 is 74605679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97650647 - 2¹⁸ = 97388503 is a prime.

Together with 97650649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 97650598 and 97650607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97650649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48825323 + 48825324.

It is an arithmetic number, because the mean of its divisors is an integer number (48825324).

Almost surely, 2^97650647 is an apocalyptic number.

97650647 is a deficient number, since it is larger than the sum of its proper divisors (1).

97650647 is an equidigital number, since it uses as much as digits as its factorization.

97650647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 97650647 is about 9881.8341920921. The cubic root of 97650647 is about 460.4951300668.

The spelling of 97650647 in words is "ninety-seven million, six hundred fifty thousand, six hundred forty-seven".