1394661 has 8 divisors (see below), whose sum is σ = 1865824. Its totient is φ = 926640.

The previous prime is 1394633. The next prime is 1394669. The reversal of 1394661 is 1664931.

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

It is not a de Polignac number, because 1394661 - 2⁹ = 1394149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394669) 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, 606 + ... + 1776.

It is an arithmetic number, because the mean of its divisors is an integer number (233228).

2^1394661 is an apocalyptic number.

It is an amenable number.

1394661 is a deficient number, since it is larger than the sum of its proper divisors (471163).

1394661 is a wasteful number, since it uses less digits than its factorization.

1394661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571.

The product of its digits is 3888, while the sum is 30.

The square root of 1394661 is about 1180.9576622386. The cubic root of 1394661 is about 111.7265063795.

The spelling of 1394661 in words is "one million, three hundred ninety-four thousand, six hundred sixty-one".