3857503785 has 16 divisors (see below), whose sum is σ = 6496848960. Its totient is φ = 1949054400.

The previous prime is 3857503781. The next prime is 3857503789. The reversal of 3857503785 is 5873057583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3857503781) and next prime (3857503789).

It is not a de Polignac number, because 3857503785 - 2² = 3857503781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3857503781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6767266 + ... + 6767835.

It is an arithmetic number, because the mean of its divisors is an integer number (406053060).

Almost surely, 2^3857503785 is an apocalyptic number.

It is an amenable number.

3857503785 is a deficient number, since it is larger than the sum of its proper divisors (2639345175).

3857503785 is a wasteful number, since it uses less digits than its factorization.

3857503785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13535128.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The square root of 3857503785 is about 62108.8060181485. The cubic root of 3857503785 is about 1568.3227906936.

The spelling of 3857503785 in words is "three billion, eight hundred fifty-seven million, five hundred three thousand, seven hundred eighty-five".