1357685 has 8 divisors (see below), whose sum is σ = 1862016. Its totient is φ = 930960.

The previous prime is 1357679. The next prime is 1357703. The reversal of 1357685 is 5867531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1357685 - 2⁴ = 1357669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 38791 = 1357685 / (1 + 3 + 5 + 7 + 6 + 8 + 5).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19361 + ... + 19430.

It is an arithmetic number, because the mean of its divisors is an integer number (232752).

2^1357685 is an apocalyptic number.

It is an amenable number.

1357685 is a deficient number, since it is larger than the sum of its proper divisors (504331).

1357685 is an equidigital number, since it uses as much as digits as its factorization.

1357685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38803.

The product of its digits is 25200, while the sum is 35.

The square root of 1357685 is about 1165.1974081674. The cubic root of 1357685 is about 110.7302651729.

The spelling of 1357685 in words is "one million, three hundred fifty-seven thousand, six hundred eighty-five".