810384949 has 4 divisors (see below), whose sum is σ = 884056320. Its totient is φ = 736713580.

The previous prime is 810384947. The next prime is 810384977. The reversal of 810384949 is 949483018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 810384949 - 2¹ = 810384947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 810384899 and 810384908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810384947) 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, 36835669 + ... + 36835690.

It is an arithmetic number, because the mean of its divisors is an integer number (221014080).

Almost surely, 2^810384949 is an apocalyptic number.

It is an amenable number.

810384949 is a deficient number, since it is larger than the sum of its proper divisors (73671371).

810384949 is a wasteful number, since it uses less digits than its factorization.

810384949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73671370.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 810384949 is about 28467.2610027730. The cubic root of 810384949 is about 932.3173982814.

The spelling of 810384949 in words is "eight hundred ten million, three hundred eighty-four thousand, nine hundred forty-nine".