1380897 has 24 divisors (see below), whose sum is σ = 2381184. Its totient is φ = 753984.

The previous prime is 1380889. The next prime is 1380913. The reversal of 1380897 is 7980831.

It is not a de Polignac number, because 1380897 - 2³ = 1380889 is a prime.

1380897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1380817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 973 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (99216).

2^1380897 is an apocalyptic number.

It is an amenable number.

1380897 is a deficient number, since it is larger than the sum of its proper divisors (1000287).

1380897 is a wasteful number, since it uses less digits than its factorization.

1380897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1380897 is about 1175.1157389806. The cubic root of 1380897 is about 111.3577452136.

The spelling of 1380897 in words is "one million, three hundred eighty thousand, eight hundred ninety-seven".