38093987 has 2 divisors, whose sum is σ = 38093988. Its totient is φ = 38093986.

The previous prime is 38093983. The next prime is 38094029. The reversal of 38093987 is 78939083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38093987 - 2² = 38093983 is a prime.

It is not a weakly prime, because it can be changed into another prime (38093983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19046993 + 19046994.

It is an arithmetic number, because the mean of its divisors is an integer number (19046994).

Almost surely, 2^38093987 is an apocalyptic number.

38093987 is a deficient number, since it is larger than the sum of its proper divisors (1).

38093987 is an equidigital number, since it uses as much as digits as its factorization.

38093987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 38093987 is about 6172.0326473537. The cubic root of 38093987 is about 336.4744896531.

The spelling of 38093987 in words is "thirty-eight million, ninety-three thousand, nine hundred eighty-seven".