674821834 has 16 divisors (see below), whose sum is σ = 1081614600. Its totient is φ = 314648064.

The previous prime is 674821831. The next prime is 674821837. The reversal of 674821834 is 438128476.

674821834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (674821831) and next prime (674821837).

It can be written as a sum of positive squares in 4 ways, for example, as 673246809 + 1575025 = 25947^2 + 1255^2 .

It is not an unprimeable number, because it can be changed into a prime (674821831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87339 + ... + 94750.

Almost surely, 2^674821834 is an apocalyptic number.

674821834 is a deficient number, since it is larger than the sum of its proper divisors (406792766).

674821834 is a wasteful number, since it uses less digits than its factorization.

674821834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182217.

The product of its digits is 258048, while the sum is 43.

The square root of 674821834 is about 25977.3330809766. Note that the first 3 decimals coincide. The cubic root of 674821834 is about 877.1281353325.

It can be divided in two parts, 6748 and 21834, that added together give a palindrome (28582).

The spelling of 674821834 in words is "six hundred seventy-four million, eight hundred twenty-one thousand, eight hundred thirty-four".