1897936 has 10 divisors (see below), whose sum is σ = 3677282. Its totient is φ = 948960.

The previous prime is 1897871. The next prime is 1897939. The reversal of 1897936 is 6397981.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 207936 = 1300^2 + 456^2 .

It is a super-2 number, since 2×1897936² = 7204322120192, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1897892 and 1897901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59295 + ... + 59326.

2^1897936 is an apocalyptic number.

1897936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1897936 is a deficient number, since it is larger than the sum of its proper divisors (1779346).

1897936 is a wasteful number, since it uses less digits than its factorization.

1897936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118629 (or 118623 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1897936 is about 1377.6559802795. The cubic root of 1897936 is about 123.8113677193.

The spelling of 1897936 in words is "one million, eight hundred ninety-seven thousand, nine hundred thirty-six".