1403897 has 16 divisors (see below), whose sum is σ = 1658880. Its totient is φ = 1174800.

The previous prime is 1403893. The next prime is 1403903. The reversal of 1403897 is 7983041.

It is not a de Polignac number, because 1403897 - 2² = 1403893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1403893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7754 + ... + 7932.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^1403897 is an apocalyptic number.

It is an amenable number.

1403897 is a deficient number, since it is larger than the sum of its proper divisors (254983).

1403897 is a wasteful number, since it uses less digits than its factorization.

1403897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1403897 is about 1184.8615952929. The cubic root of 1403897 is about 111.9725963993.

It can be divided in two parts, 1403 and 897, that multiplied together give a triangular number (1258491 = T₁₅₈₆).

The spelling of 1403897 in words is "one million, four hundred three thousand, eight hundred ninety-seven".