3858565457 has 4 divisors (see below), whose sum is σ = 3860499636. Its totient is φ = 3856631280.

The previous prime is 3858565423. The next prime is 3858565489. The reversal of 3858565457 is 7545658583.

It is a happy number.

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 2208906001 + 1649659456 = 46999^2 + 40616^2 .

It is a cyclic number.

It is not a de Polignac number, because 3858565457 - 2⁶ = 3858565393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3858555457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964094 + ... + 968087.

It is an arithmetic number, because the mean of its divisors is an integer number (965124909).

Almost surely, 2^3858565457 is an apocalyptic number.

It is an amenable number.

3858565457 is a deficient number, since it is larger than the sum of its proper divisors (1934179).

3858565457 is a wasteful number, since it uses less digits than its factorization.

3858565457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934178.

The product of its digits is 20160000, while the sum is 56.

The square root of 3858565457 is about 62117.3523019132. The cubic root of 3858565457 is about 1568.4666567580.

The spelling of 3858565457 in words is "three billion, eight hundred fifty-eight million, five hundred sixty-five thousand, four hundred fifty-seven".