1005913899 has 12 divisors (see below), whose sum is σ = 1453764312. Its totient is φ = 670250400.

The previous prime is 1005913897. The next prime is 1005913927. The reversal of 1005913899 is 9983195001.

It is not a de Polignac number, because 1005913899 - 2¹ = 1005913897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1005913897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11562 + ... + 46319.

It is an arithmetic number, because the mean of its divisors is an integer number (121147026).

Almost surely, 2^1005913899 is an apocalyptic number.

1005913899 is a deficient number, since it is larger than the sum of its proper divisors (447850413).

1005913899 is a wasteful number, since it uses less digits than its factorization.

1005913899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59818 (or 59815 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 1005913899 is about 31716.1457147617. The cubic root of 1005913899 is about 1001.9674263617.

The spelling of 1005913899 in words is "one billion, five million, nine hundred thirteen thousand, eight hundred ninety-nine".