38903663 has 2 divisors, whose sum is σ = 38903664. Its totient is φ = 38903662.

The previous prime is 38903651. The next prime is 38903713. The reversal of 38903663 is 36630983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38903663 - 2⁴ = 38903647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38903063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19451831 + 19451832.

It is an arithmetic number, because the mean of its divisors is an integer number (19451832).

Almost surely, 2^38903663 is an apocalyptic number.

38903663 is a deficient number, since it is larger than the sum of its proper divisors (1).

38903663 is an equidigital number, since it uses as much as digits as its factorization.

38903663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 38903663 is about 6237.2800963240. The cubic root of 38903663 is about 338.8416840378.

The spelling of 38903663 in words is "thirty-eight million, nine hundred three thousand, six hundred sixty-three".