38994907 has 4 divisors (see below), whose sum is σ = 44565616. Its totient is φ = 33424200.

The previous prime is 38994899. The next prime is 38994919. The reversal of 38994907 is 70949983.

38994907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70949983 = 13 ⋅5457691.

It is a cyclic number.

It is not a de Polignac number, because 38994907 - 2³ = 38994899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38994947) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2785344 + ... + 2785357.

It is an arithmetic number, because the mean of its divisors is an integer number (11141404).

Almost surely, 2^38994907 is an apocalyptic number.

38994907 is a deficient number, since it is larger than the sum of its proper divisors (5570709).

38994907 is an equidigital number, since it uses as much as digits as its factorization.

38994907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570708.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 38994907 is about 6244.5902187413. The cubic root of 38994907 is about 339.1063817444.

The spelling of 38994907 in words is "thirty-eight million, nine hundred ninety-four thousand, nine hundred seven".