1399694 has 8 divisors (see below), whose sum is σ = 2129328. Its totient is φ = 689920.

The previous prime is 1399691. The next prime is 1399709. The reversal of 1399694 is 4969931.

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

It is a super-3 number, since 3×1399694³ = 8226603339727642152, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787 + ... + 5070.

It is an arithmetic number, because the mean of its divisors is an integer number (266166).

2^1399694 is an apocalyptic number.

1399694 is a deficient number, since it is larger than the sum of its proper divisors (729634).

1399694 is an equidigital number, since it uses as much as digits as its factorization.

1399694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9930.

The product of its digits is 52488, while the sum is 41.

The square root of 1399694 is about 1183.0866409524. The cubic root of 1399694 is about 111.8607431662.

The spelling of 1399694 in words is "one million, three hundred ninety-nine thousand, six hundred ninety-four".