38049987 has 4 divisors (see below), whose sum is σ = 50733320. Its totient is φ = 25366656.

The previous prime is 38049971. The next prime is 38049997. The reversal of 38049987 is 78994083.

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

It is not a de Polignac number, because 38049987 - 2⁴ = 38049971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38049937) 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, 6341662 + ... + 6341667.

It is an arithmetic number, because the mean of its divisors is an integer number (12683330).

Almost surely, 2^38049987 is an apocalyptic number.

38049987 is a deficient number, since it is larger than the sum of its proper divisors (12683333).

38049987 is a wasteful number, since it uses less digits than its factorization.

38049987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683332.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 38049987 is about 6168.4671515702. The cubic root of 38049987 is about 336.3448928108.

The spelling of 38049987 in words is "thirty-eight million, forty-nine thousand, nine hundred eighty-seven".