897533956 has 18 divisors (see below), whose sum is σ = 1726455710. Its totient is φ = 407969760.

The previous prime is 897533953. The next prime is 897533977. The reversal of 897533956 is 659335798.

897533956 = T₃₇₉₁ + T₃₇₉₂ + ... + T₃₉₁₁.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 878173956 + 19360000 = 29634^2 + 4400^2 .

It is a junction number, because it is equal to n+sod(n) for n = 897533897 and 897533906.

It is not an unprimeable number, because it can be changed into a prime (897533953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 926721 + ... + 927688.

Almost surely, 2^897533956 is an apocalyptic number.

It is an amenable number.

897533956 is a deficient number, since it is larger than the sum of its proper divisors (828921754).

897533956 is a wasteful number, since it uses less digits than its factorization.

897533956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854435 (or 1854422 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 55.

The square root of 897533956 is about 29958.8710735234. The cubic root of 897533956 is about 964.6067485870.

The spelling of 897533956 in words is "eight hundred ninety-seven million, five hundred thirty-three thousand, nine hundred fifty-six".