2689393706 has 8 divisors (see below), whose sum is σ = 4173197220. Its totient is φ = 1298327968.

The previous prime is 2689393697. The next prime is 2689393739. The reversal of 2689393706 is 6073939862.

It can be written as a sum of positive squares in 2 ways, for example, as 2684172481 + 5221225 = 51809^2 + 2285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23184371 + ... + 23184486.

Almost surely, 2^2689393706 is an apocalyptic number.

2689393706 is a deficient number, since it is larger than the sum of its proper divisors (1483803514).

2689393706 is a wasteful number, since it uses less digits than its factorization.

2689393706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46368888.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 2689393706 is about 51859.3646895139. The cubic root of 2689393706 is about 1390.6509219498.

The spelling of 2689393706 in words is "two billion, six hundred eighty-nine million, three hundred ninety-three thousand, seven hundred six".