1383941047 has 4 divisors (see below), whose sum is σ = 1391111920. Its totient is φ = 1376770176.

The previous prime is 1383940997. The next prime is 1383941059. The reversal of 1383941047 is 7401493831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1383941047 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 (1383941077) 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, 3585147 + ... + 3585532.

It is an arithmetic number, because the mean of its divisors is an integer number (347777980).

Almost surely, 2^1383941047 is an apocalyptic number.

1383941047 is a deficient number, since it is larger than the sum of its proper divisors (7170873).

1383941047 is an equidigital number, since it uses as much as digits as its factorization.

1383941047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7170872.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1383941047 is about 37201.3581338101. The cubic root of 1383941047 is about 1114.3951076980.

The spelling of 1383941047 in words is "one billion, three hundred eighty-three million, nine hundred forty-one thousand, forty-seven".