1383494647 has 4 divisors (see below), whose sum is σ = 1383608520. Its totient is φ = 1383380776.

The previous prime is 1383494627. The next prime is 1383494683. The reversal of 1383494647 is 7464943831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7464943831 = 17 ⋅439114343.

It is a cyclic number.

It is not a de Polignac number, because 1383494647 - 2¹¹ = 1383492599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1383494647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383494627) 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, 36193 + ... + 63850.

It is an arithmetic number, because the mean of its divisors is an integer number (345902130).

Almost surely, 2^1383494647 is an apocalyptic number.

1383494647 is a deficient number, since it is larger than the sum of its proper divisors (113873).

1383494647 is a wasteful number, since it uses less digits than its factorization.

1383494647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113872.

The product of its digits is 1741824, while the sum is 49.

The square root of 1383494647 is about 37195.3578689599. The cubic root of 1383494647 is about 1114.2752761310.

The spelling of 1383494647 in words is "one billion, three hundred eighty-three million, four hundred ninety-four thousand, six hundred forty-seven".