38487871 has 2 divisors, whose sum is σ = 38487872. Its totient is φ = 38487870.

The previous prime is 38487811. The next prime is 38487887. The reversal of 38487871 is 17878483.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38487871 is a prime.

It is a super-2 number, since 2×38487871² = 2962632428225282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38487811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19243935 + 19243936.

It is an arithmetic number, because the mean of its divisors is an integer number (19243936).

Almost surely, 2^38487871 is an apocalyptic number.

38487871 is a deficient number, since it is larger than the sum of its proper divisors (1).

38487871 is an equidigital number, since it uses as much as digits as its factorization.

38487871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 46.

The square root of 38487871 is about 6203.8593633318. The cubic root of 38487871 is about 337.6302078296.

The spelling of 38487871 in words is "thirty-eight million, four hundred eighty-seven thousand, eight hundred seventy-one".