3798626690 has 16 divisors (see below), whose sum is σ = 6847639992. Its totient is φ = 1517203584.

The previous prime is 3798626681. The next prime is 3798626701. The reversal of 3798626690 is 966268973.

It is a Cunningham number, because it is equal to 61633²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 3776225401 + 22401289 = 61451^2 + 4733^2 .

It is a super-2 number, since 2×3798626690² = 28859129459960712200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273779 + ... + 287318.

Almost surely, 2^3798626690 is an apocalyptic number.

3798626690 is a deficient number, since it is larger than the sum of its proper divisors (3049013302).

3798626690 is a wasteful number, since it uses less digits than its factorization.

3798626690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561781.

The product of its (nonzero) digits is 5878656, while the sum is 56.

The square root of 3798626690 is about 61633.0000081125. Note that the first 5 decimals coincide. The cubic root of 3798626690 is about 1560.3027423072.

The spelling of 3798626690 in words is "three billion, seven hundred ninety-eight million, six hundred twenty-six thousand, six hundred ninety".