38405671 has 2 divisors, whose sum is σ = 38405672. Its totient is φ = 38405670.

The previous prime is 38405651. The next prime is 38405681. The reversal of 38405671 is 17650483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38405671 - 2⁵ = 38405639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38405611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202835 + 19202836.

It is an arithmetic number, because the mean of its divisors is an integer number (19202836).

Almost surely, 2^38405671 is an apocalyptic number.

38405671 is a deficient number, since it is larger than the sum of its proper divisors (1).

38405671 is an equidigital number, since it uses as much as digits as its factorization.

38405671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 38405671 is about 6197.2309138840. The cubic root of 38405671 is about 337.3896733124.

The spelling of 38405671 in words is "thirty-eight million, four hundred five thousand, six hundred seventy-one".