38900047 has 4 divisors (see below), whose sum is σ = 39147976. Its totient is φ = 38652120.

The previous prime is 38900041. The next prime is 38900053. The reversal of 38900047 is 74000983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (38900041) and next prime (38900053).

It is a cyclic number.

It is not a de Polignac number, because 38900047 - 2¹⁹ = 38375759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38899991 and 38900018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38900041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123729 + ... + 124042.

It is an arithmetic number, because the mean of its divisors is an integer number (9786994).

Almost surely, 2^38900047 is an apocalyptic number.

38900047 is a deficient number, since it is larger than the sum of its proper divisors (247929).

38900047 is a wasteful number, since it uses less digits than its factorization.

38900047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247928.

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

The square root of 38900047 is about 6236.9902196492. The cubic root of 38900047 is about 338.8311855449.

The spelling of 38900047 in words is "thirty-eight million, nine hundred thousand, forty-seven".