899999938 has 8 divisors (see below), whose sum is σ = 1382926860. Its totient is φ = 439024320.

The previous prime is 899999929. The next prime is 899999963. The reversal of 899999938 is 839999998.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 850480569 + 49519369 = 29163^2 + 7037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5487723 + ... + 5487886.

Almost surely, 2^899999938 is an apocalyptic number.

899999938 is a deficient number, since it is larger than the sum of its proper divisors (482926922).

899999938 is a wasteful number, since it uses less digits than its factorization.

899999938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10975652.

The product of its digits is 102036672, while the sum is 73.

The square root of 899999938 is about 29999.9989666666. The cubic root of 899999938 is about 965.4893624351.

The spelling of 899999938 in words is "eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-eight".