834478477 has 12 divisors (see below), whose sum is σ = 987176160. Its totient is φ = 703141656.

The previous prime is 834478457. The next prime is 834478483. The reversal of 834478477 is 774874438.

834478477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 834478477 - 2⁷ = 834478349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834478417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141433 + ... + 147214.

It is an arithmetic number, because the mean of its divisors is an integer number (82264680).

Almost surely, 2^834478477 is an apocalyptic number.

It is an amenable number.

834478477 is a deficient number, since it is larger than the sum of its proper divisors (152697683).

834478477 is a wasteful number, since it uses less digits than its factorization.

834478477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288720 (or 288713 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 52.

The square root of 834478477 is about 28887.3411202900. The cubic root of 834478477 is about 941.4668801660.

The spelling of 834478477 in words is "eight hundred thirty-four million, four hundred seventy-eight thousand, four hundred seventy-seven".