1393963685 has 8 divisors (see below), whose sum is σ = 1673940480. Its totient is φ = 1114381584.

The previous prime is 1393963673. The next prime is 1393963699. The reversal of 1393963685 is 5863693931.

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 1393963685 - 2²⁰ = 1392915109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90845 + ... + 105074.

It is an arithmetic number, because the mean of its divisors is an integer number (209242560).

Almost surely, 2^1393963685 is an apocalyptic number.

It is an amenable number.

1393963685 is a deficient number, since it is larger than the sum of its proper divisors (279976795).

1393963685 is a wasteful number, since it uses less digits than its factorization.

1393963685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197347.

The product of its digits is 3149280, while the sum is 53.

The square root of 1393963685 is about 37335.8230791823. The cubic root of 1393963685 is about 1117.0788260477.

The spelling of 1393963685 in words is "one billion, three hundred ninety-three million, nine hundred sixty-three thousand, six hundred eighty-five".