786502049 has 4 divisors (see below), whose sum is σ = 794289300. Its totient is φ = 778714800.

The previous prime is 786502021. The next prime is 786502051. The reversal of 786502049 is 940205687.

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 462250000 + 324252049 = 21500^2 + 18007^2 .

It is a cyclic number.

It is not a de Polignac number, because 786502049 - 2¹⁶ = 786436513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 786501997 and 786502015.

It is not an unprimeable number, because it can be changed into a prime (786502099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893474 + ... + 3893675.

It is an arithmetic number, because the mean of its divisors is an integer number (198572325).

Almost surely, 2^786502049 is an apocalyptic number.

It is an amenable number.

786502049 is a deficient number, since it is larger than the sum of its proper divisors (7787251).

786502049 is a wasteful number, since it uses less digits than its factorization.

786502049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787250.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 786502049 is about 28044.6438558239. The cubic root of 786502049 is about 923.0671298201.

The spelling of 786502049 in words is "seven hundred eighty-six million, five hundred two thousand, forty-nine".