897682477 has 2 divisors, whose sum is σ = 897682478. Its totient is φ = 897682476.

The previous prime is 897682441. The next prime is 897682517. The reversal of 897682477 is 774286798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 595652836 + 302029641 = 24406^2 + 17379^2 .

It is a cyclic number.

It is not a de Polignac number, because 897682477 - 2⁷ = 897682349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897682427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448841238 + 448841239.

It is an arithmetic number, because the mean of its divisors is an integer number (448841239).

Almost surely, 2^897682477 is an apocalyptic number.

It is an amenable number.

897682477 is a deficient number, since it is larger than the sum of its proper divisors (1).

897682477 is an equidigital number, since it uses as much as digits as its factorization.

897682477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9483264, while the sum is 58.

The square root of 897682477 is about 29961.3497192633. The cubic root of 897682477 is about 964.6599523149.

The spelling of 897682477 in words is "eight hundred ninety-seven million, six hundred eighty-two thousand, four hundred seventy-seven".