705742734 has 16 divisors (see below), whose sum is σ = 1417651920. Its totient is φ = 234219840.

The previous prime is 705742729. The next prime is 705742771. The reversal of 705742734 is 437247507.

It is a junction number, because it is equal to n+sod(n) for n = 705742692 and 705742701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255447 + ... + 258194.

It is an arithmetic number, because the mean of its divisors is an integer number (88603245).

Almost surely, 2^705742734 is an apocalyptic number.

705742734 is an abundant number, since it is smaller than the sum of its proper divisors (711909186).

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

705742734 is a wasteful number, since it uses less digits than its factorization.

705742734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513875.

The product of its (nonzero) digits is 164640, while the sum is 39.

The square root of 705742734 is about 26565.8189032448. The cubic root of 705742734 is about 890.3254854621.

The spelling of 705742734 in words is "seven hundred five million, seven hundred forty-two thousand, seven hundred thirty-four".