3898357 has 4 divisors (see below), whose sum is σ = 4003756. Its totient is φ = 3792960.

The previous prime is 3898351. The next prime is 3898361. The reversal of 3898357 is 7538983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3437316 + 461041 = 1854^2 + 679^2 .

It is a cyclic number.

It is not a de Polignac number, because 3898357 - 2¹⁹ = 3374069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52644 + ... + 52717.

It is an arithmetic number, because the mean of its divisors is an integer number (1000939).

Almost surely, 2^3898357 is an apocalyptic number.

3898357 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3898357 is a deficient number, since it is larger than the sum of its proper divisors (105399).

3898357 is a wasteful number, since it uses less digits than its factorization.

3898357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105398.

The product of its digits is 181440, while the sum is 43.

The square root of 3898357 is about 1974.4257392974. The cubic root of 3898357 is about 157.3839844380.

The spelling of 3898357 in words is "three million, eight hundred ninety-eight thousand, three hundred fifty-seven".