3705428686 has 4 divisors (see below), whose sum is σ = 5558143032. Its totient is φ = 1852714342.

The previous prime is 3705428651. The next prime is 3705428717. The reversal of 3705428686 is 6868245073.

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

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 as a sum of consecutive naturals, namely, 926357170 + ... + 926357173.

It is an arithmetic number, because the mean of its divisors is an integer number (1389535758).

Almost surely, 2^3705428686 is an apocalyptic number.

3705428686 is a deficient number, since it is larger than the sum of its proper divisors (1852714346).

3705428686 is a wasteful number, since it uses less digits than its factorization.

3705428686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852714345.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 3705428686 is about 60872.2324709715. The cubic root of 3705428686 is about 1547.4364403469.

The spelling of 3705428686 in words is "three billion, seven hundred five million, four hundred twenty-eight thousand, six hundred eighty-six".