1394687 has 6 divisors (see below), whose sum is σ = 1622448. Its totient is φ = 1195404.

The previous prime is 1394683. The next prime is 1394699. The reversal of 1394687 is 7864931.

It is not a de Polignac number, because 1394687 - 2² = 1394683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1394687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14183 + ... + 14280.

It is an arithmetic number, because the mean of its divisors is an integer number (270408).

2^1394687 is an apocalyptic number.

1394687 is a deficient number, since it is larger than the sum of its proper divisors (227761).

1394687 is an equidigital number, since it uses as much as digits as its factorization.

1394687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28477 (or 28470 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 1394687 is about 1180.9686702026. The cubic root of 1394687 is about 111.7272006632.

The spelling of 1394687 in words is "one million, three hundred ninety-four thousand, six hundred eighty-seven".