3870458785 has 4 divisors (see below), whose sum is σ = 4644550548. Its totient is φ = 3096367024.

The previous prime is 3870458737. The next prime is 3870458849. The reversal of 3870458785 is 5878540783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5878540783 = 7873 ⋅746671.

It can be written as a sum of positive squares in 2 ways, for example, as 736362496 + 3134096289 = 27136^2 + 55983^2 .

It is a cyclic number.

It is not a de Polignac number, because 3870458785 - 2¹⁵ = 3870426017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387045874 + ... + 387045883.

It is an arithmetic number, because the mean of its divisors is an integer number (1161137637).

Almost surely, 2^3870458785 is an apocalyptic number.

It is an amenable number.

3870458785 is a deficient number, since it is larger than the sum of its proper divisors (774091763).

3870458785 is an equidigital number, since it uses as much as digits as its factorization.

3870458785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774091762.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The square root of 3870458785 is about 62213.0113802571. The cubic root of 3870458785 is about 1570.0765085033.

The spelling of 3870458785 in words is "three billion, eight hundred seventy million, four hundred fifty-eight thousand, seven hundred eighty-five".