38206997 has 2 divisors, whose sum is σ = 38206998. Its totient is φ = 38206996.

The previous prime is 38206943. The next prime is 38207009. The reversal of 38206997 is 79960283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21446161 + 16760836 = 4631^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 38206997 - 2⁸ = 38206741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38206937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19103498 + 19103499.

It is an arithmetic number, because the mean of its divisors is an integer number (19103499).

Almost surely, 2^38206997 is an apocalyptic number.

It is an amenable number.

38206997 is a deficient number, since it is larger than the sum of its proper divisors (1).

38206997 is an equidigital number, since it uses as much as digits as its factorization.

38206997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 38206997 is about 6181.1808742343. The cubic root of 38206997 is about 336.8068906885.

The spelling of 38206997 in words is "thirty-eight million, two hundred six thousand, nine hundred ninety-seven".