897407219 has 2 divisors, whose sum is σ = 897407220. Its totient is φ = 897407218.

The previous prime is 897407201. The next prime is 897407227. The reversal of 897407219 is 912704798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 897407219 - 2⁸ = 897406963 is a prime.

It is a super-2 number, since 2×897407219² = 1610679433426627922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (897407279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448703609 + 448703610.

It is an arithmetic number, because the mean of its divisors is an integer number (448703610).

Almost surely, 2^897407219 is an apocalyptic number.

897407219 is a deficient number, since it is larger than the sum of its proper divisors (1).

897407219 is an equidigital number, since it uses as much as digits as its factorization.

897407219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 897407219 is about 29956.7558156754. The cubic root of 897407219 is about 964.5613437607.

The spelling of 897407219 in words is "eight hundred ninety-seven million, four hundred seven thousand, two hundred nineteen".