897202836 has 36 divisors (see below), whose sum is σ = 2323248564. Its totient is φ = 291772800.

The previous prime is 897202807. The next prime is 897202847. The reversal of 897202836 is 638202798.

It can be written as a sum of positive squares in 2 ways, for example, as 32490000 + 864712836 = 5700^2 + 29406^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 897202791 and 897202800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302455 + ... + 305406.

Almost surely, 2^897202836 is an apocalyptic number.

It is an amenable number.

897202836 is an abundant number, since it is smaller than the sum of its proper divisors (1426045728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897202836 is a wasteful number, since it uses less digits than its factorization.

897202836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607912 (or 607907 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 897202836 is about 29953.3443207933. The cubic root of 897202836 is about 964.4881124542.

The spelling of 897202836 in words is "eight hundred ninety-seven million, two hundred two thousand, eight hundred thirty-six".