838287885 has 32 divisors (see below), whose sum is σ = 1427760000. Its totient is φ = 418784256.

The previous prime is 838287869. The next prime is 838287887. The reversal of 838287885 is 588782838.

838287885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 838287885 - 2⁴ = 838287869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838287887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8841 + ... + 41889.

It is an arithmetic number, because the mean of its divisors is an integer number (44617500).

Almost surely, 2^838287885 is an apocalyptic number.

It is an amenable number.

838287885 is a deficient number, since it is larger than the sum of its proper divisors (589472115).

838287885 is a wasteful number, since it uses less digits than its factorization.

838287885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33165.

The product of its digits is 6881280, while the sum is 57.

The square root of 838287885 is about 28953.2016364339. The cubic root of 838287885 is about 942.8973096656.

The spelling of 838287885 in words is "eight hundred thirty-eight million, two hundred eighty-seven thousand, eight hundred eighty-five".