38971019 has 4 divisors (see below), whose sum is σ = 39552744. Its totient is φ = 38389296.

The previous prime is 38971007. The next prime is 38971043. The reversal of 38971019 is 91017983.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38971019 is a prime.

It is a super-2 number, since 2×38971019² = 3037480643796722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38973019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290762 + ... + 290895.

It is an arithmetic number, because the mean of its divisors is an integer number (9888186).

Almost surely, 2^38971019 is an apocalyptic number.

38971019 is a deficient number, since it is larger than the sum of its proper divisors (581725).

38971019 is an equidigital number, since it uses as much as digits as its factorization.

38971019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581724.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 38971019 is about 6242.6772301634. The cubic root of 38971019 is about 339.0371228885.

The spelling of 38971019 in words is "thirty-eight million, nine hundred seventy-one thousand, nineteen".