38672489 has 2 divisors, whose sum is σ = 38672490. Its totient is φ = 38672488.

The previous prime is 38672423. The next prime is 38672507. The reversal of 38672489 is 98427683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38539264 + 133225 = 6208^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 38672489 - 2¹² = 38668393 is a prime.

It is a super-2 number, since 2×38672489² = 2991122810910242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38672989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19336244 + 19336245.

It is an arithmetic number, because the mean of its divisors is an integer number (19336245).

Almost surely, 2^38672489 is an apocalyptic number.

It is an amenable number.

38672489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38672489 is an equidigital number, since it uses as much as digits as its factorization.

38672489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 38672489 is about 6218.7208491779. The cubic root of 38672489 is about 338.1691933289.

The spelling of 38672489 in words is "thirty-eight million, six hundred seventy-two thousand, four hundred eighty-nine".