1381706 has 8 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 676108.

The previous prime is 1381697. The next prime is 1381727. The reversal of 1381706 is 6071831.

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

It is a super-2 number, since 2×1381706² = 3818222940872, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7256 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

2^1381706 is an apocalyptic number.

1381706 is a deficient number, since it is larger than the sum of its proper divisors (735094).

1381706 is a wasteful number, since it uses less digits than its factorization.

1381706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1381706 is about 1175.4599099927. The cubic root of 1381706 is about 111.3794873201.

The spelling of 1381706 in words is "one million, three hundred eighty-one thousand, seven hundred six".