3938357 has 2 divisors, whose sum is σ = 3938358. Its totient is φ = 3938356.

The previous prime is 3938351. The next prime is 3938371. The reversal of 3938357 is 7538393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3066001 + 872356 = 1751^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 3938357 - 2¹² = 3934261 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3938357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3938351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969178 + 1969179.

It is an arithmetic number, because the mean of its divisors is an integer number (1969179).

Almost surely, 2^3938357 is an apocalyptic number.

It is an amenable number.

3938357 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938357 is an equidigital number, since it uses as much as digits as its factorization.

3938357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 3938357 is about 1984.5294152519. The cubic root of 3938357 is about 157.9204454493.

The spelling of 3938357 in words is "three million, nine hundred thirty-eight thousand, three hundred fifty-seven".