834091778 has 8 divisors (see below), whose sum is σ = 1347379068. Its totient is φ = 384965424.

The previous prime is 834091771. The next prime is 834091789. The reversal of 834091778 is 877190438.

834091778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 822140929 + 11950849 = 28673^2 + 3457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (834091771) 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, 16040201 + ... + 16040252.

Almost surely, 2^834091778 is an apocalyptic number.

834091778 is a deficient number, since it is larger than the sum of its proper divisors (513287290).

834091778 is a wasteful number, since it uses less digits than its factorization.

834091778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32080468.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 834091778 is about 28880.6471187887. The cubic root of 834091778 is about 941.3214318165.

The spelling of 834091778 in words is "eight hundred thirty-four million, ninety-one thousand, seven hundred seventy-eight".