38999835 has 72 divisors (see below), whose sum is σ = 82162080. Its totient is φ = 17031168.

The previous prime is 38999797. The next prime is 38999843. The reversal of 38999835 is 53899983.

38999835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38999835 - 2⁶ = 38999771 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 50331 + ... + 51099.

It is an arithmetic number, because the mean of its divisors is an integer number (1141140).

Almost surely, 2^38999835 is an apocalyptic number.

38999835 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38999835 is an abundant number, since it is smaller than the sum of its proper divisors (43162245).

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

38999835 is a wasteful number, since it uses less digits than its factorization.

38999835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 807 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 38999835 is about 6244.9847878117. The cubic root of 38999835 is about 339.1206660530.

The spelling of 38999835 in words is "thirty-eight million, nine hundred ninety-nine thousand, eight hundred thirty-five".