38503999 has 2 divisors, whose sum is σ = 38504000. Its totient is φ = 38503998.

The previous prime is 38503991. The next prime is 38504017. The reversal of 38503999 is 99930583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38503999 - 2³ = 38503991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38503991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19251999 + 19252000.

It is an arithmetic number, because the mean of its divisors is an integer number (19252000).

Almost surely, 2^38503999 is an apocalyptic number.

38503999 is a deficient number, since it is larger than the sum of its proper divisors (1).

38503999 is an equidigital number, since it uses as much as digits as its factorization.

38503999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 38503999 is about 6205.1590632312. The cubic root of 38503999 is about 337.6773615556.

The spelling of 38503999 in words is "thirty-eight million, five hundred three thousand, nine hundred ninety-nine".