38599999 has 4 divisors (see below), whose sum is σ = 38904064. Its totient is φ = 38295936.

The previous prime is 38599961. The next prime is 38600021. The reversal of 38599999 is 99999583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99999583 = 31 ⋅3225793.

It is a cyclic number.

It is not a de Polignac number, because 38599999 - 2⁷ = 38599871 is a prime.

It is a Duffinian number.

38599999 is a modest number, since divided by 9999 gives 3859 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38599909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151842 + ... + 152095.

It is an arithmetic number, because the mean of its divisors is an integer number (9726016).

Almost surely, 2^38599999 is an apocalyptic number.

38599999 is a deficient number, since it is larger than the sum of its proper divisors (304065).

38599999 is a wasteful number, since it uses less digits than its factorization.

38599999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304064.

The product of its digits is 7085880, while the sum is 61.

The square root of 38599999 is about 6212.8897463258. The cubic root of 38599999 is about 337.9577663931.

The spelling of 38599999 in words is "thirty-eight million, five hundred ninety-nine thousand, nine hundred ninety-nine".