383364649 has 4 divisors (see below), whose sum is σ = 383582164. Its totient is φ = 383147136.

The previous prime is 383364623. The next prime is 383364673. The reversal of 383364649 is 946463383.

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

It can be written as a sum of positive squares in 2 ways, for example, as 315417600 + 67947049 = 17760^2 + 8243^2 .

It is a cyclic number.

It is not a de Polignac number, because 383364649 - 2⁵ = 383364617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383364599 and 383364608.

It is not an unprimeable number, because it can be changed into a prime (383364749) 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, 106092 + ... + 109645.

It is an arithmetic number, because the mean of its divisors is an integer number (95895541).

Almost surely, 2^383364649 is an apocalyptic number.

It is an amenable number.

383364649 is a deficient number, since it is larger than the sum of its proper divisors (217515).

383364649 is a wasteful number, since it uses less digits than its factorization.

383364649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217514.

The product of its digits is 1119744, while the sum is 46.

The square root of 383364649 is about 19579.6999210917. The cubic root of 383364649 is about 726.4471445264.

The spelling of 383364649 in words is "three hundred eighty-three million, three hundred sixty-four thousand, six hundred forty-nine".