38770087 has 2 divisors, whose sum is σ = 38770088. Its totient is φ = 38770086.

The previous prime is 38770079. The next prime is 38770099. The reversal of 38770087 is 78007783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38770087 - 2³ = 38770079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38770037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19385043 + 19385044.

It is an arithmetic number, because the mean of its divisors is an integer number (19385044).

Almost surely, 2^38770087 is an apocalyptic number.

38770087 is a deficient number, since it is larger than the sum of its proper divisors (1).

38770087 is an equidigital number, since it uses as much as digits as its factorization.

38770087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 38770087 is about 6226.5630166248. The cubic root of 38770087 is about 338.4534342452.

Subtracting 38770087 from its reverse (78007783), we obtain a square (39237696 = 6264²).

The spelling of 38770087 in words is "thirty-eight million, seven hundred seventy thousand, eighty-seven".