38899229 has 2 divisors, whose sum is σ = 38899230. Its totient is φ = 38899228.

The previous prime is 38899207. The next prime is 38899243. The reversal of 38899229 is 92299883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31663129 + 7236100 = 5627^2 + 2690^2 .

It is a cyclic number.

It is not a de Polignac number, because 38899229 - 2²⁴ = 22122013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38899129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19449614 + 19449615.

It is an arithmetic number, because the mean of its divisors is an integer number (19449615).

Almost surely, 2^38899229 is an apocalyptic number.

It is an amenable number.

38899229 is a deficient number, since it is larger than the sum of its proper divisors (1).

38899229 is an equidigital number, since it uses as much as digits as its factorization.

38899229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The square root of 38899229 is about 6236.9246428027. The cubic root of 38899229 is about 338.8288105190.

The spelling of 38899229 in words is "thirty-eight million, eight hundred ninety-nine thousand, two hundred twenty-nine".