1395857 has 8 divisors (see below), whose sum is σ = 1459200. Its totient is φ = 1333584.

The previous prime is 1395839. The next prime is 1395859. The reversal of 1395857 is 7585931.

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

It is a cyclic number.

It is not a de Polignac number, because 1395857 - 2¹⁴ = 1379473 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 1395857.

It is not an unprimeable number, because it can be changed into a prime (1395859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3494 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (182400).

2^1395857 is an apocalyptic number.

It is an amenable number.

1395857 is a deficient number, since it is larger than the sum of its proper divisors (63343).

1395857 is a wasteful number, since it uses less digits than its factorization.

1395857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its digits is 37800, while the sum is 38.

The square root of 1395857 is about 1181.4639224284. The cubic root of 1395857 is about 111.7584345023.

The spelling of 1395857 in words is "one million, three hundred ninety-five thousand, eight hundred fifty-seven".