3885866245 has 4 divisors (see below), whose sum is σ = 4663039500. Its totient is φ = 3108692992.

The previous prime is 3885866233. The next prime is 3885866279. The reversal of 3885866245 is 5426685883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2232468001 + 1653398244 = 47249^2 + 40662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3885866245 is a prime.

It is a congruent 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, 388586620 + ... + 388586629.

It is an arithmetic number, because the mean of its divisors is an integer number (1165759875).

Almost surely, 2^3885866245 is an apocalyptic number.

It is an amenable number.

3885866245 is a deficient number, since it is larger than the sum of its proper divisors (777173255).

3885866245 is an equidigital number, since it uses as much as digits as its factorization.

3885866245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777173254.

The product of its digits is 11059200, while the sum is 55.

The square root of 3885866245 is about 62336.7166684290. The cubic root of 3885866245 is about 1572.1571285345.

The spelling of 3885866245 in words is "three billion, eight hundred eighty-five million, eight hundred sixty-six thousand, two hundred forty-five".