1396861 has 8 divisors (see below), whose sum is σ = 1510880. Its totient is φ = 1286928.

The previous prime is 1396849. The next prime is 1396867. The reversal of 1396861 is 1686931.

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 1396861 - 2¹³ = 1388669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (188860).

2^1396861 is an apocalyptic number.

It is an amenable number.

1396861 is a deficient number, since it is larger than the sum of its proper divisors (114019).

1396861 is a wasteful number, since it uses less digits than its factorization.

1396861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its digits is 7776, while the sum is 34.

The square root of 1396861 is about 1181.8887426488. Note that the first 3 decimals coincide. The cubic root of 1396861 is about 111.7852229620.

The spelling of 1396861 in words is "one million, three hundred ninety-six thousand, eight hundred sixty-one".