899903436 has 12 divisors (see below), whose sum is σ = 2099774712. Its totient is φ = 299967808.

The previous prime is 899903419. The next prime is 899903443. The reversal of 899903436 is 634309998.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37495965 + ... + 37495988.

It is an arithmetic number, because the mean of its divisors is an integer number (174981226).

Almost surely, 2^899903436 is an apocalyptic number.

It is an amenable number.

899903436 is an abundant number, since it is smaller than the sum of its proper divisors (1199871276).

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

899903436 is a wasteful number, since it uses less digits than its factorization.

899903436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74991960 (or 74991958 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 899903436 is about 29998.3905568282. The cubic root of 899903436 is about 965.4548531791.

The spelling of 899903436 in words is "eight hundred ninety-nine million, nine hundred three thousand, four hundred thirty-six".