3948858585 has 48 divisors (see below), whose sum is σ = 8074859520. Its totient is φ = 1746956160.

The previous prime is 3948858553. The next prime is 3948858593. The reversal of 3948858585 is 5858588493.

3948858585 is a `hidden beast` number, since 3 + 9 + 48 + 8 + 5 + 8 + 585 = 666.

It is not a de Polignac number, because 3948858585 - 2⁵ = 3948858553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192430 + ... + 211959.

It is an arithmetic number, because the mean of its divisors is an integer number (168226240).

Almost surely, 2^3948858585 is an apocalyptic number.

3948858585 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3948858585 is an abundant number, since it is smaller than the sum of its proper divisors (4126000935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3948858585 is a wasteful number, since it uses less digits than its factorization.

3948858585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404438 (or 404435 counting only the distinct ones).

The product of its digits is 55296000, while the sum is 63.

The square root of 3948858585 is about 62839.9441836162. The cubic root of 3948858585 is about 1580.6068524245.

The spelling of 3948858585 in words is "three billion, nine hundred forty-eight million, eight hundred fifty-eight thousand, five hundred eighty-five".