38179489 has 2 divisors, whose sum is σ = 38179490. Its totient is φ = 38179488.

The previous prime is 38179483. The next prime is 38179499. The reversal of 38179489 is 98497183.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29376400 + 8803089 = 5420^2 + 2967^2 .

It is an emirp because it is prime and its reverse (98497183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38179489 - 2⁹ = 38178977 is a prime.

It is a super-2 number, since 2×38179489² = 2915346760602242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38179483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19089744 + 19089745.

It is an arithmetic number, because the mean of its divisors is an integer number (19089745).

Almost surely, 2^38179489 is an apocalyptic number.

It is an amenable number.

38179489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38179489 is an equidigital number, since it uses as much as digits as its factorization.

38179489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The square root of 38179489 is about 6178.9553324166. The cubic root of 38179489 is about 336.7260406779.

The spelling of 38179489 in words is "thirty-eight million, one hundred seventy-nine thousand, four hundred eighty-nine".