38812899 has 16 divisors (see below), whose sum is σ = 54225920. Its totient is φ = 24662880.

The previous prime is 38812867. The next prime is 38812903. The reversal of 38812899 is 99821883.

It is a happy number.

It is a Cunningham number, because it is equal to 6230²-1.

It is not a de Polignac number, because 38812899 - 2⁵ = 38812867 is a prime.

It is a super-2 number, since 2×38812899² = 3012882257568402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38812849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3117 + ... + 9345.

It is an arithmetic number, because the mean of its divisors is an integer number (3389120).

Almost surely, 2^38812899 is an apocalyptic number.

38812899 is a deficient number, since it is larger than the sum of its proper divisors (15413021).

38812899 is a wasteful number, since it uses less digits than its factorization.

38812899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its digits is 248832, while the sum is 48.

The square root of 38812899 is about 6229.9999197432. Note that the first 4 decimals coincide. The cubic root of 38812899 is about 338.5779678682.

The spelling of 38812899 in words is "thirty-eight million, eight hundred twelve thousand, eight hundred ninety-nine".