1338896783 has 4 divisors (see below), whose sum is σ = 1530167760. Its totient is φ = 1147625808.

The previous prime is 1338896749. The next prime is 1338896791. The reversal of 1338896783 is 3876988331.

It is a happy number.

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

It is not a de Polignac number, because 1338896783 - 2⁸ = 1338896527 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 (1338896743) 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, 95635478 + ... + 95635491.

It is an arithmetic number, because the mean of its divisors is an integer number (382541940).

Almost surely, 2^1338896783 is an apocalyptic number.

1338896783 is a deficient number, since it is larger than the sum of its proper divisors (191270977).

1338896783 is an equidigital number, since it uses as much as digits as its factorization.

1338896783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191270976.

The product of its digits is 5225472, while the sum is 56.

The square root of 1338896783 is about 36590.9385367470. The cubic root of 1338896783 is about 1102.1711342004.

The spelling of 1338896783 in words is "one billion, three hundred thirty-eight million, eight hundred ninety-six thousand, seven hundred eighty-three".