897242121 has 24 divisors (see below), whose sum is σ = 1357589376. Its totient is φ = 569944320.

The previous prime is 897242053. The next prime is 897242179. The reversal of 897242121 is 121242798.

897242121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 897242121 - 2⁷ = 897241993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897242321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46201 + ... + 62681.

It is an arithmetic number, because the mean of its divisors is an integer number (56566224).

Almost surely, 2^897242121 is an apocalyptic number.

It is an amenable number.

897242121 is a deficient number, since it is larger than the sum of its proper divisors (460347255).

897242121 is a wasteful number, since it uses less digits than its factorization.

897242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16773 (or 16770 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 897242121 is about 29954.0000834613. Note that the first 4 decimals coincide. The cubic root of 897242121 is about 964.5021893017.

The spelling of 897242121 in words is "eight hundred ninety-seven million, two hundred forty-two thousand, one hundred twenty-one".