38904007 has 4 divisors (see below), whose sum is σ = 41192496. Its totient is φ = 36615520.

The previous prime is 38903999. The next prime is 38904059. The reversal of 38904007 is 70040983.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70040983 = 2621 ⋅26723.

It is a cyclic number.

It is not a de Polignac number, because 38904007 - 2³ = 38903999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38904007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38904407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144219 + ... + 1144252.

It is an arithmetic number, because the mean of its divisors is an integer number (10298124).

Almost surely, 2^38904007 is an apocalyptic number.

38904007 is a deficient number, since it is larger than the sum of its proper divisors (2288489).

38904007 is a wasteful number, since it uses less digits than its factorization.

38904007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288488.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 38904007 is about 6237.3076723856. The cubic root of 38904007 is about 338.8426827544.

The spelling of 38904007 in words is "thirty-eight million, nine hundred four thousand, seven".