906888906 has 64 divisors (see below), whose sum is σ = 2512604160. Its totient is φ = 235554480.

The previous prime is 906888887. The next prime is 906888967. The reversal of 906888906 is 609888609.

It is a Harshad number since it is a multiple of its sum of digits (54).

906888906 is a strobogrammatic number because it is the same when read upside-down.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104896 + ... + 113211.

It is an arithmetic number, because the mean of its divisors is an integer number (39259440).

Almost surely, 2^906888906 is an apocalyptic number.

906888906 is an abundant number, since it is smaller than the sum of its proper divisors (1605715254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

906888906 is a wasteful number, since it uses less digits than its factorization.

906888906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218136 (or 218130 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The square root of 906888906 is about 30114.5962284072. The cubic root of 906888906 is about 967.9465206493.

The spelling of 906888906 in words is "nine hundred six million, eight hundred eighty-eight thousand, nine hundred six".