38889671 has 2 divisors, whose sum is σ = 38889672. Its totient is φ = 38889670.

The previous prime is 38889661. The next prime is 38889677. The reversal of 38889671 is 17698883.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38889671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38889677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19444835 + 19444836.

It is an arithmetic number, because the mean of its divisors is an integer number (19444836).

Almost surely, 2^38889671 is an apocalyptic number.

38889671 is a deficient number, since it is larger than the sum of its proper divisors (1).

38889671 is an equidigital number, since it uses as much as digits as its factorization.

38889671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 50.

The square root of 38889671 is about 6236.1583527040. The cubic root of 38889671 is about 338.8010568323.

The spelling of 38889671 in words is "thirty-eight million, eight hundred eighty-nine thousand, six hundred seventy-one".