38870987 has 2 divisors, whose sum is σ = 38870988. Its totient is φ = 38870986.

The previous prime is 38870977. The next prime is 38871013. The reversal of 38870987 is 78907883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38870987 - 2⁸ = 38870731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38870917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19435493 + 19435494.

It is an arithmetic number, because the mean of its divisors is an integer number (19435494).

Almost surely, 2^38870987 is an apocalyptic number.

38870987 is a deficient number, since it is larger than the sum of its proper divisors (1).

38870987 is an equidigital number, since it uses as much as digits as its factorization.

38870987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 38870987 is about 6234.6601350835. The cubic root of 38870987 is about 338.7467907268.

The spelling of 38870987 in words is "thirty-eight million, eight hundred seventy thousand, nine hundred eighty-seven".