38741987 has 4 divisors (see below), whose sum is σ = 38792880. Its totient is φ = 38691096.

The previous prime is 38741981. The next prime is 38742001. The reversal of 38741987 is 78914783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78914783 = 8501 ⋅9283.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38741987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38741981) 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, 24287 + ... + 25832.

It is an arithmetic number, because the mean of its divisors is an integer number (9698220).

Almost surely, 2^38741987 is an apocalyptic number.

38741987 is a deficient number, since it is larger than the sum of its proper divisors (50893).

38741987 is an equidigital number, since it uses as much as digits as its factorization.

38741987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50892.

The product of its digits is 338688, while the sum is 47.

The square root of 38741987 is about 6224.3061460696. The cubic root of 38741987 is about 338.3716457594.

The spelling of 38741987 in words is "thirty-eight million, seven hundred forty-one thousand, nine hundred eighty-seven".