1897657352 has 8 divisors (see below), whose sum is σ = 3558107550. Its totient is φ = 948828672.

The previous prime is 1897657337. The next prime is 1897657361. The reversal of 1897657352 is 2537567981.

It can be written as a sum of positive squares in only one way, i.e., 1373888356 + 523768996 = 37066^2 + 22886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×1897657352³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1897657294 and 1897657303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118603577 + ... + 118603592.

Almost surely, 2^1897657352 is an apocalyptic number.

It is an amenable number.

1897657352 is a deficient number, since it is larger than the sum of its proper divisors (1660450198).

1897657352 is a wasteful number, since it uses less digits than its factorization.

1897657352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237207175 (or 237207171 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 1897657352 is about 43562.1091316754. The cubic root of 1897657352 is about 1238.0530824585.

The spelling of 1897657352 in words is "one billion, eight hundred ninety-seven million, six hundred fifty-seven thousand, three hundred fifty-two".