3198257 has 2 divisors, whose sum is σ = 3198258. Its totient is φ = 3198256.

The previous prime is 3198199. The next prime is 3198269. The reversal of 3198257 is 7528913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1934881 + 1263376 = 1391^2 + 1124^2 .

It is a cyclic number.

It is not a de Polignac number, because 3198257 - 2¹² = 3194161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3198277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599128 + 1599129.

It is an arithmetic number, because the mean of its divisors is an integer number (1599129).

Almost surely, 2^3198257 is an apocalyptic number.

It is an amenable number.

3198257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3198257 is an equidigital number, since it uses as much as digits as its factorization.

3198257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 3198257 is about 1788.3671323305. The cubic root of 3198257 is about 147.3344998076.

The spelling of 3198257 in words is "three million, one hundred ninety-eight thousand, two hundred fifty-seven".