1396843803 has 12 divisors (see below), whose sum is σ = 2018051880. Its totient is φ = 931049856.

The previous prime is 1396843757. The next prime is 1396843823. The reversal of 1396843803 is 3083486931.

It is not a de Polignac number, because 1396843803 - 2²⁵ = 1363289371 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1396843823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48600 + ... + 71802.

It is an arithmetic number, because the mean of its divisors is an integer number (168170990).

Almost surely, 2^1396843803 is an apocalyptic number.

1396843803 is a deficient number, since it is larger than the sum of its proper divisors (621208077).

1396843803 is a wasteful number, since it uses less digits than its factorization.

1396843803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29898 (or 29895 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1396843803 is about 37374.3736134801. The cubic root of 1396843803 is about 1117.8476422427.

The spelling of 1396843803 in words is "one billion, three hundred ninety-six million, eight hundred forty-three thousand, eight hundred three".