210704434 has 4 divisors (see below), whose sum is σ = 316056654. Its totient is φ = 105352216.

The previous prime is 210704413. The next prime is 210704437. The reversal of 210704434 is 434407012.

210704434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 207446409 + 3258025 = 14403^2 + 1805^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210704399 and 210704408.

It is not an unprimeable number, because it can be changed into a prime (210704437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52676107 + ... + 52676110.

Almost surely, 2^210704434 is an apocalyptic number.

210704434 is a deficient number, since it is larger than the sum of its proper divisors (105352220).

210704434 is a wasteful number, since it uses less digits than its factorization.

210704434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105352219.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 210704434 is about 14515.6616797168. The cubic root of 210704434 is about 595.0560726762.

The spelling of 210704434 in words is "two hundred ten million, seven hundred four thousand, four hundred thirty-four".