834642654 has 16 divisors (see below), whose sum is σ = 1671199248. Its totient is φ = 277895232.

The previous prime is 834642643. The next prime is 834642671. The reversal of 834642654 is 456246438.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 74047 + ... + 84570.

It is an arithmetic number, because the mean of its divisors is an integer number (104449953).

Almost surely, 2^834642654 is an apocalyptic number.

834642654 is an abundant number, since it is smaller than the sum of its proper divisors (836556594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

834642654 is a wasteful number, since it uses less digits than its factorization.

834642654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159499.

The product of its digits is 552960, while the sum is 42.

The square root of 834642654 is about 28890.1826577819. The cubic root of 834642654 is about 941.5286181564.

The spelling of 834642654 in words is "eight hundred thirty-four million, six hundred forty-two thousand, six hundred fifty-four".