4207855885 has 4 divisors (see below), whose sum is σ = 5049427068. Its totient is φ = 3366284704.

The previous prime is 4207855879. The next prime is 4207855909. The reversal of 4207855885 is 5885587024.

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 1797929604 + 2409926281 = 42402^2 + 49091^2 .

It is a cyclic number.

It is not a de Polignac number, because 4207855885 - 2⁹ = 4207855373 is a prime.

It is a super-2 number, since 2×4207855885² = 35412102297858266450, which contains 22 as substring.

It is a Duffinian number.

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, 420785584 + ... + 420785593.

It is an arithmetic number, because the mean of its divisors is an integer number (1262356767).

Almost surely, 2^4207855885 is an apocalyptic number.

It is an amenable number.

4207855885 is a deficient number, since it is larger than the sum of its proper divisors (841571183).

4207855885 is an equidigital number, since it uses as much as digits as its factorization.

4207855885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841571182.

The product of its (nonzero) digits is 3584000, while the sum is 52.

The square root of 4207855885 is about 64867.9881374473. The cubic root of 4207855885 is about 1614.4339647159.

The spelling of 4207855885 in words is "four billion, two hundred seven million, eight hundred fifty-five thousand, eight hundred eighty-five".