38707987 has 2 divisors, whose sum is σ = 38707988. Its totient is φ = 38707986.

The previous prime is 38707973. The next prime is 38708023. The reversal of 38707987 is 78970783.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38707987 - 2¹¹ = 38705939 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38707987.

It is not a weakly prime, because it can be changed into another prime (38707087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19353993 + 19353994.

It is an arithmetic number, because the mean of its divisors is an integer number (19353994).

Almost surely, 2^38707987 is an apocalyptic number.

38707987 is a deficient number, since it is larger than the sum of its proper divisors (1).

38707987 is an equidigital number, since it uses as much as digits as its factorization.

38707987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 38707987 is about 6221.5743184503. The cubic root of 38707987 is about 338.2726317096.

The spelling of 38707987 in words is "thirty-eight million, seven hundred seven thousand, nine hundred eighty-seven".