38780537 has 2 divisors, whose sum is σ = 38780538. Its totient is φ = 38780536.

The previous prime is 38780513. The next prime is 38780549. The reversal of 38780537 is 73508783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36675136 + 2105401 = 6056^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 38780537 - 2²⁰ = 37731961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38780494 and 38780503.

It is not a weakly prime, because it can be changed into another prime (38780557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19390268 + 19390269.

It is an arithmetic number, because the mean of its divisors is an integer number (19390269).

Almost surely, 2^38780537 is an apocalyptic number.

It is an amenable number.

38780537 is a deficient number, since it is larger than the sum of its proper divisors (1).

38780537 is an equidigital number, since it uses as much as digits as its factorization.

38780537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 38780537 is about 6227.4021068179. The cubic root of 38780537 is about 338.4838401667.

The spelling of 38780537 in words is "thirty-eight million, seven hundred eighty thousand, five hundred thirty-seven".