834386649 has 4 divisors (see below), whose sum is σ = 1112515536. Its totient is φ = 556257764.

The previous prime is 834386647. The next prime is 834386677. The reversal of 834386649 is 946683438.

It is a happy number.

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 834386649 - 2¹ = 834386647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (834386647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139064439 + ... + 139064444.

It is an arithmetic number, because the mean of its divisors is an integer number (278128884).

Almost surely, 2^834386649 is an apocalyptic number.

It is an amenable number.

834386649 is a deficient number, since it is larger than the sum of its proper divisors (278128887).

834386649 is a wasteful number, since it uses less digits than its factorization.

834386649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278128886.

The product of its digits is 2985984, while the sum is 51.

The square root of 834386649 is about 28885.7516606371. The cubic root of 834386649 is about 941.4323451463.

The spelling of 834386649 in words is "eight hundred thirty-four million, three hundred eighty-six thousand, six hundred forty-nine".