897555801 has 32 divisors (see below), whose sum is σ = 1287982080. Its totient is φ = 554299200.

The previous prime is 897555797. The next prime is 897555853. The reversal of 897555801 is 108555798.

It is not a de Polignac number, because 897555801 - 2² = 897555797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897555301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 529311 + ... + 531003.

It is an arithmetic number, because the mean of its divisors is an integer number (40249440).

Almost surely, 2^897555801 is an apocalyptic number.

It is an amenable number.

897555801 is a deficient number, since it is larger than the sum of its proper divisors (390426279).

897555801 is a wasteful number, since it uses less digits than its factorization.

897555801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its (nonzero) digits is 504000, while the sum is 48.

The square root of 897555801 is about 29959.2356544689. The cubic root of 897555801 is about 964.6145743497.

The spelling of 897555801 in words is "eight hundred ninety-seven million, five hundred fifty-five thousand, eight hundred one".