3857969786 has 16 divisors (see below), whose sum is σ = 6327704448. Its totient is φ = 1749549600.

The previous prime is 3857969737. The next prime is 3857969803. The reversal of 3857969786 is 6879697583.

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, 193955 + ... + 212918.

It is an arithmetic number, because the mean of its divisors is an integer number (395481528).

Almost surely, 2^3857969786 is an apocalyptic number.

3857969786 is a deficient number, since it is larger than the sum of its proper divisors (2469734662).

3857969786 is a wasteful number, since it uses less digits than its factorization.

3857969786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407317.

The product of its digits is 137168640, while the sum is 68.

The square root of 3857969786 is about 62112.5573938153. The cubic root of 3857969786 is about 1568.3859412526.

The spelling of 3857969786 in words is "three billion, eight hundred fifty-seven million, nine hundred sixty-nine thousand, seven hundred eighty-six".