38432987 has 4 divisors (see below), whose sum is σ = 38446800. Its totient is φ = 38419176.

The previous prime is 38432983. The next prime is 38433001. The reversal of 38432987 is 78923483.

38432987 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 78923483 = 41 ⋅1924963.

It is a cyclic number.

It is not a de Polignac number, because 38432987 - 2² = 38432983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38432983) 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, 1112 + ... + 8837.

It is an arithmetic number, because the mean of its divisors is an integer number (9611700).

Almost surely, 2^38432987 is an apocalyptic number.

38432987 is a deficient number, since it is larger than the sum of its proper divisors (13813).

38432987 is an equidigital number, since it uses as much as digits as its factorization.

38432987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13812.

The product of its digits is 290304, while the sum is 44.

The square root of 38432987 is about 6199.4344096861. The cubic root of 38432987 is about 337.4696437260.

The spelling of 38432987 in words is "thirty-eight million, four hundred thirty-two thousand, nine hundred eighty-seven".