899815434 has 32 divisors (see below), whose sum is σ = 2065278336. Its totient is φ = 256020480.

The previous prime is 899815429. The next prime is 899815439. The reversal of 899815434 is 434518998.

It is an interprime number because it is at equal distance from previous prime (899815429) and next prime (899815439).

It is not an unprimeable number, because it can be changed into a prime (899815439) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 34327 + ... + 54570.

It is an arithmetic number, because the mean of its divisors is an integer number (64539948).

Almost surely, 2^899815434 is an apocalyptic number.

899815434 is an abundant number, since it is smaller than the sum of its proper divisors (1165462902).

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

899815434 is a wasteful number, since it uses less digits than its factorization.

899815434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89150.

The product of its digits is 1244160, while the sum is 51.

The square root of 899815434 is about 29996.9237422773. The cubic root of 899815434 is about 965.4233813848.

The spelling of 899815434 in words is "eight hundred ninety-nine million, eight hundred fifteen thousand, four hundred thirty-four".