38278963 has 2 divisors, whose sum is σ = 38278964. Its totient is φ = 38278962.

The previous prime is 38278949. The next prime is 38278973. The reversal of 38278963 is 36987283.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38278963 - 2⁵ = 38278931 is a prime.

It is not a weakly prime, because it can be changed into another prime (38278913) 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, 19139481 + 19139482.

It is an arithmetic number, because the mean of its divisors is an integer number (19139482).

Almost surely, 2^38278963 is an apocalyptic number.

38278963 is a deficient number, since it is larger than the sum of its proper divisors (1).

38278963 is an equidigital number, since it uses as much as digits as its factorization.

38278963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 38278963 is about 6186.9995151123. Note that the first 3 decimals coincide. The cubic root of 38278963 is about 337.0182258191.

The spelling of 38278963 in words is "thirty-eight million, two hundred seventy-eight thousand, nine hundred sixty-three".