38930287 has 4 divisors (see below), whose sum is σ = 42469416. Its totient is φ = 35391160.

The previous prime is 38930263. The next prime is 38930299. The reversal of 38930287 is 78203983.

It is a happy number.

38930287 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.

It is a cyclic number.

It is not a de Polignac number, because 38930287 - 2⁷ = 38930159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38930207) 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, 1769548 + ... + 1769569.

It is an arithmetic number, because the mean of its divisors is an integer number (10617354).

Almost surely, 2^38930287 is an apocalyptic number.

38930287 is a deficient number, since it is larger than the sum of its proper divisors (3539129).

38930287 is a wasteful number, since it uses less digits than its factorization.

38930287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539128.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 38930287 is about 6239.4139949197. The cubic root of 38930287 is about 338.9189626550.

The spelling of 38930287 in words is "thirty-eight million, nine hundred thirty thousand, two hundred eighty-seven".