1004992905 has 16 divisors (see below), whose sum is σ = 1837701504. Its totient is φ = 459425280.

The previous prime is 1004992903. The next prime is 1004992909. The reversal of 1004992905 is 5092994001.

It is not a de Polignac number, because 1004992905 - 2¹ = 1004992903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1004992903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4785576 + ... + 4785785.

It is an arithmetic number, because the mean of its divisors is an integer number (114856344).

Almost surely, 2^1004992905 is an apocalyptic number.

1004992905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004992905 is a deficient number, since it is larger than the sum of its proper divisors (832708599).

1004992905 is an equidigital number, since it uses as much as digits as its factorization.

1004992905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571376.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1004992905 is about 31701.6230657044. The cubic root of 1004992905 is about 1001.6615394244.

The spelling of 1004992905 in words is "one billion, four million, nine hundred ninety-two thousand, nine hundred five".