38684029 has 2 divisors, whose sum is σ = 38684030. Its totient is φ = 38684028.

The previous prime is 38684021. The next prime is 38684039. The reversal of 38684029 is 92048683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 8543929 = 5490^2 + 2923^2 .

It is an emirp because it is prime and its reverse (92048683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38684029 - 2³ = 38684021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38683982 and 38684000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38684021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19342014 + 19342015.

It is an arithmetic number, because the mean of its divisors is an integer number (19342015).

Almost surely, 2^38684029 is an apocalyptic number.

It is an amenable number.

38684029 is a deficient number, since it is larger than the sum of its proper divisors (1).

38684029 is an equidigital number, since it uses as much as digits as its factorization.

38684029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 38684029 is about 6219.6486235156. The cubic root of 38684029 is about 338.2028269229.

The spelling of 38684029 in words is "thirty-eight million, six hundred eighty-four thousand, twenty-nine".