897890723 has 2 divisors, whose sum is σ = 897890724. Its totient is φ = 897890722.

The previous prime is 897890701. The next prime is 897890743. The reversal of 897890723 is 327098798.

897890723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 897890723 - 2¹⁴ = 897874339 is a prime.

It is not a weakly prime, because it can be changed into another prime (897890743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448945361 + 448945362.

It is an arithmetic number, because the mean of its divisors is an integer number (448945362).

Almost surely, 2^897890723 is an apocalyptic number.

897890723 is a deficient number, since it is larger than the sum of its proper divisors (1).

897890723 is an equidigital number, since it uses as much as digits as its factorization.

897890723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 897890723 is about 29964.8247617102. The cubic root of 897890723 is about 964.7345410660.

The spelling of 897890723 in words is "eight hundred ninety-seven million, eight hundred ninety thousand, seven hundred twenty-three".