38164993 has 2 divisors, whose sum is σ = 38164994. Its totient is φ = 38164992.

The previous prime is 38164967. The next prime is 38165003. The reversal of 38164993 is 39946183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23357889 + 14807104 = 4833^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 38164993 - 2⁵ = 38164961 is a prime.

It is not a weakly prime, because it can be changed into another prime (38164943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19082496 + 19082497.

It is an arithmetic number, because the mean of its divisors is an integer number (19082497).

Almost surely, 2^38164993 is an apocalyptic number.

It is an amenable number.

38164993 is a deficient number, since it is larger than the sum of its proper divisors (1).

38164993 is an equidigital number, since it uses as much as digits as its factorization.

38164993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 38164993 is about 6177.7822072326. The cubic root of 38164993 is about 336.6834192015.

The spelling of 38164993 in words is "thirty-eight million, one hundred sixty-four thousand, nine hundred ninety-three".