38346989 has 2 divisors, whose sum is σ = 38346990. Its totient is φ = 38346988.

The previous prime is 38346983. The next prime is 38347009. The reversal of 38346989 is 98964383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24900100 + 13446889 = 4990^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 38346989 - 2⁸ = 38346733 is a prime.

It is a super-2 number, since 2×38346989² = 2940983130732242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38346983) 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, 19173494 + 19173495.

It is an arithmetic number, because the mean of its divisors is an integer number (19173495).

Almost surely, 2^38346989 is an apocalyptic number.

It is an amenable number.

38346989 is a deficient number, since it is larger than the sum of its proper divisors (1).

38346989 is an equidigital number, since it uses as much as digits as its factorization.

38346989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 38346989 is about 6192.4945700420. The cubic root of 38346989 is about 337.2177473730.

The spelling of 38346989 in words is "thirty-eight million, three hundred forty-six thousand, nine hundred eighty-nine".