38503957 has 2 divisors, whose sum is σ = 38503958. Its totient is φ = 38503956.

The previous prime is 38503901. The next prime is 38503979. The reversal of 38503957 is 75930583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32787076 + 5716881 = 5726^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 38503957 - 2¹¹ = 38501909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38563957) 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, 19251978 + 19251979.

It is an arithmetic number, because the mean of its divisors is an integer number (19251979).

Almost surely, 2^38503957 is an apocalyptic number.

It is an amenable number.

38503957 is a deficient number, since it is larger than the sum of its proper divisors (1).

38503957 is an equidigital number, since it uses as much as digits as its factorization.

38503957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 38503957 is about 6205.1556789496. The cubic root of 38503957 is about 337.6772387766.

The spelling of 38503957 in words is "thirty-eight million, five hundred three thousand, nine hundred fifty-seven".