1396815 has 32 divisors (see below), whose sum is σ = 2612736. Its totient is φ = 624000.

The previous prime is 1396789. The next prime is 1396817. The reversal of 1396815 is 5186931.

It is not a de Polignac number, because 1396815 - 2⁶ = 1396751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5440 + ... + 5690.

It is an arithmetic number, because the mean of its divisors is an integer number (81648).

2^1396815 is an apocalyptic number.

1396815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1396815 is a deficient number, since it is larger than the sum of its proper divisors (1215921).

1396815 is a wasteful number, since it uses less digits than its factorization.

1396815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its digits is 6480, while the sum is 33.

The square root of 1396815 is about 1181.8692821120. The cubic root of 1396815 is about 111.7839958829.

It can be divided in two parts, 1396 and 815, that added together give a triangular number (2211 = T₆₆).

The spelling of 1396815 in words is "one million, three hundred ninety-six thousand, eight hundred fifteen".