897822907 has 2 divisors, whose sum is σ = 897822908. Its totient is φ = 897822906.

The previous prime is 897822901. The next prime is 897822923. The reversal of 897822907 is 709228798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 897822907 - 2¹⁵ = 897790139 is a prime.

It is not a weakly prime, because it can be changed into another prime (897822901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448911453 + 448911454.

It is an arithmetic number, because the mean of its divisors is an integer number (448911454).

Almost surely, 2^897822907 is an apocalyptic number.

897822907 is a deficient number, since it is larger than the sum of its proper divisors (1).

897822907 is an equidigital number, since it uses as much as digits as its factorization.

897822907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 897822907 is about 29963.6931468736. The cubic root of 897822907 is about 964.7102522585.

The spelling of 897822907 in words is "eight hundred ninety-seven million, eight hundred twenty-two thousand, nine hundred seven".