3866210690 has 16 divisors (see below), whose sum is σ = 7199151480. Its totient is φ = 1493157120.

The previous prime is 3866210681. The next prime is 3866210701. The reversal of 3866210690 is 960126683.

It can be written as a sum of positive squares in 4 ways, for example, as 1997464249 + 1868746441 = 44693^2 + 43229^2 .

It is a super-2 number, since 2×3866210690² = 29895170198940552200, which contains 22 as substring.

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, 6665591 + ... + 6666170.

Almost surely, 2^3866210690 is an apocalyptic number.

3866210690 is a deficient number, since it is larger than the sum of its proper divisors (3332940790).

3866210690 is a wasteful number, since it uses less digits than its factorization.

3866210690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331797.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 3866210690 is about 62178.8604752451. The cubic root of 3866210690 is about 1569.5018758628.

The spelling of 3866210690 in words is "three billion, eight hundred sixty-six million, two hundred ten thousand, six hundred ninety".