1393387883 has 2 divisors, whose sum is σ = 1393387884. Its totient is φ = 1393387882.

The previous prime is 1393387871. The next prime is 1393387901. The reversal of 1393387883 is 3887833931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393387883 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1393387843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696693941 + 696693942.

It is an arithmetic number, because the mean of its divisors is an integer number (696693942).

Almost surely, 2^1393387883 is an apocalyptic number.

1393387883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393387883 is an equidigital number, since it uses as much as digits as its factorization.

1393387883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 1393387883 is about 37328.1111630364. Note that the first 4 decimals coincide. The cubic root of 1393387883 is about 1116.9249949703.

The spelling of 1393387883 in words is "one billion, three hundred ninety-three million, three hundred eighty-seven thousand, eight hundred eighty-three".