38842487 has 2 divisors, whose sum is σ = 38842488. Its totient is φ = 38842486.

The previous prime is 38842439. The next prime is 38842511. The reversal of 38842487 is 78424883.

It is a strong prime.

It is an emirp because it is prime and its reverse (78424883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38842487 - 2⁸ = 38842231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38842087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19421243 + 19421244.

It is an arithmetic number, because the mean of its divisors is an integer number (19421244).

Almost surely, 2^38842487 is an apocalyptic number.

38842487 is a deficient number, since it is larger than the sum of its proper divisors (1).

38842487 is an equidigital number, since it uses as much as digits as its factorization.

38842487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064, while the sum is 44.

The square root of 38842487 is about 6232.3741062295. The cubic root of 38842487 is about 338.6639813726.

It can be divided in two parts, 388 and 42487, that added together give a cube (42875 = 35³).

The spelling of 38842487 in words is "thirty-eight million, eight hundred forty-two thousand, four hundred eighty-seven".