3830990857 has 12 divisors (see below), whose sum is σ = 3978378180. Its totient is φ = 3684665376.

The previous prime is 3830990833. The next prime is 3830990861. The reversal of 3830990857 is 7580990383.

It can be written as a sum of positive squares in 2 ways, for example, as 1064651641 + 2766339216 = 32629^2 + 52596^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3830990857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3830990827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6877623 + ... + 6878179.

It is an arithmetic number, because the mean of its divisors is an integer number (331531515).

Almost surely, 2^3830990857 is an apocalyptic number.

It is an amenable number.

3830990857 is a deficient number, since it is larger than the sum of its proper divisors (147387323).

3830990857 is an frugal number, since it uses more digits than its factorization.

3830990857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 3830990857 is about 61894.9986428629. The cubic root of 3830990857 is about 1564.7214585237.

The spelling of 3830990857 in words is "three billion, eight hundred thirty million, nine hundred ninety thousand, eight hundred fifty-seven".