897022513 has 2 divisors, whose sum is σ = 897022514. Its totient is φ = 897022512.

The previous prime is 897022457. The next prime is 897022537. The reversal of 897022513 is 315220798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585252864 + 311769649 = 24192^2 + 17657^2 .

It is a cyclic number.

It is not a de Polignac number, because 897022513 - 2⁹ = 897022001 is a prime.

It is not a weakly prime, because it can be changed into another prime (897022543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448511256 + 448511257.

It is an arithmetic number, because the mean of its divisors is an integer number (448511257).

Almost surely, 2^897022513 is an apocalyptic number.

It is an amenable number.

897022513 is a deficient number, since it is larger than the sum of its proper divisors (1).

897022513 is an equidigital number, since it uses as much as digits as its factorization.

897022513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 897022513 is about 29950.3341049812. The cubic root of 897022513 is about 964.4234927139.

The spelling of 897022513 in words is "eight hundred ninety-seven million, twenty-two thousand, five hundred thirteen".