897206784079 has 2 divisors, whose sum is σ = 897206784080. Its totient is φ = 897206784078.

The previous prime is 897206784049. The next prime is 897206784113. The reversal of 897206784079 is 970487602798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897206784079 - 2²¹ = 897204686927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897206784029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448603392039 + 448603392040.

It is an arithmetic number, because the mean of its divisors is an integer number (448603392040).

Almost surely, 2^897206784079 is an apocalyptic number.

897206784079 is a deficient number, since it is larger than the sum of its proper divisors (1).

897206784079 is an equidigital number, since it uses as much as digits as its factorization.

897206784079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 897206784079 in words is "eight hundred ninety-seven billion, two hundred six million, seven hundred eighty-four thousand, seventy-nine".