897606979 has 2 divisors, whose sum is σ = 897606980. Its totient is φ = 897606978.

The previous prime is 897606977. The next prime is 897606989. The reversal of 897606979 is 979606798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897606979 - 2¹ = 897606977 is a prime.

Together with 897606977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (897606977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448803489 + 448803490.

It is an arithmetic number, because the mean of its divisors is an integer number (448803490).

Almost surely, 2^897606979 is an apocalyptic number.

897606979 is a deficient number, since it is larger than the sum of its proper divisors (1).

897606979 is an equidigital number, since it uses as much as digits as its factorization.

897606979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The square root of 897606979 is about 29960.0897695584. The cubic root of 897606979 is about 964.6329078826.

The spelling of 897606979 in words is "eight hundred ninety-seven million, six hundred six thousand, nine hundred seventy-nine".