897365428 has 24 divisors (see below), whose sum is σ = 1581620040. Its totient is φ = 445486080.

The previous prime is 897365393. The next prime is 897365429. The reversal of 897365428 is 824563798.

It can be written as a sum of positive squares in 4 ways, for example, as 3833764 + 893531664 = 1958^2 + 29892^2 .

It is a super-2 number, since 2×897365428² = 1610529422739246368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897365429) 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, 373800 + ... + 376192.

It is an arithmetic number, because the mean of its divisors is an integer number (65900835).

Almost surely, 2^897365428 is an apocalyptic number.

It is an amenable number.

897365428 is a deficient number, since it is larger than the sum of its proper divisors (684254612).

897365428 is a wasteful number, since it uses less digits than its factorization.

897365428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027 (or 3025 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 897365428 is about 29956.0582854287. The cubic root of 897365428 is about 964.5463707703.

The spelling of 897365428 in words is "eight hundred ninety-seven million, three hundred sixty-five thousand, four hundred twenty-eight".