38917699 has 2 divisors, whose sum is σ = 38917700. Its totient is φ = 38917698.

The previous prime is 38917693. The next prime is 38917729. The reversal of 38917699 is 99671983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38917699 - 2⁵ = 38917667 is a prime.

It is not a weakly prime, because it can be changed into another prime (38917693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19458849 + 19458850.

It is an arithmetic number, because the mean of its divisors is an integer number (19458850).

Almost surely, 2^38917699 is an apocalyptic number.

38917699 is a deficient number, since it is larger than the sum of its proper divisors (1).

38917699 is an equidigital number, since it uses as much as digits as its factorization.

38917699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 52.

The square root of 38917699 is about 6238.4051647837. The cubic root of 38917699 is about 338.8824292159.

The spelling of 38917699 in words is "thirty-eight million, nine hundred seventeen thousand, six hundred ninety-nine".