1009913906 has 16 divisors (see below), whose sum is σ = 1531797504. Its totient is φ = 499341024.

The previous prime is 1009913899. The next prime is 1009913921. The reversal of 1009913906 is 6093199001.

It is a self number, because there is not a number n which added to its sum of digits gives 1009913906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73151 + ... + 85853.

It is an arithmetic number, because the mean of its divisors is an integer number (95737344).

Almost surely, 2^1009913906 is an apocalyptic number.

1009913906 is a deficient number, since it is larger than the sum of its proper divisors (521883598).

1009913906 is a wasteful number, since it uses less digits than its factorization.

1009913906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13145.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 1009913906 is about 31779.1426253132. The cubic root of 1009913906 is about 1003.2937744717.

The spelling of 1009913906 in words is "one billion, nine million, nine hundred thirteen thousand, nine hundred six".