834213784 has 16 divisors (see below), whose sum is σ = 1587497400. Its totient is φ = 410881152.

The previous prime is 834213773. The next prime is 834213833. The reversal of 834213784 is 487312438.

834213784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777649 + ... + 778720.

Almost surely, 2^834213784 is an apocalyptic number.

It is an amenable number.

834213784 is a deficient number, since it is larger than the sum of its proper divisors (753283616).

834213784 is a wasteful number, since it uses less digits than its factorization.

834213784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556442 (or 1556438 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 834213784 is about 28882.7592864671. The cubic root of 834213784 is about 941.3673265515.

The spelling of 834213784 in words is "eight hundred thirty-four million, two hundred thirteen thousand, seven hundred eighty-four".