897277091 has 8 divisors (see below), whose sum is σ = 910127184. Its totient is φ = 884442240.

The previous prime is 897277067. The next prime is 897277093. The reversal of 897277091 is 190772798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897277091 - 2⁶ = 897277027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897277093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170936 + ... + 176106.

It is an arithmetic number, because the mean of its divisors is an integer number (113765898).

Almost surely, 2^897277091 is an apocalyptic number.

897277091 is a deficient number, since it is larger than the sum of its proper divisors (12850093).

897277091 is a wasteful number, since it uses less digits than its factorization.

897277091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621.

The product of its (nonzero) digits is 444528, while the sum is 50.

The square root of 897277091 is about 29954.5838061556. The cubic root of 897277091 is about 964.5147196257.

The spelling of 897277091 in words is "eight hundred ninety-seven million, two hundred seventy-seven thousand, ninety-one".