6890249 has 2 divisors, whose sum is σ = 6890250. Its totient is φ = 6890248.

The previous prime is 6890243. The next prime is 6890263. The reversal of 6890249 is 9420986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5438224 + 1452025 = 2332^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 6890249 - 2¹² = 6886153 is a prime.

It is not a weakly prime, because it can be changed into another prime (6890243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445124 + 3445125.

It is an arithmetic number, because the mean of its divisors is an integer number (3445125).

Almost surely, 2^6890249 is an apocalyptic number.

It is an amenable number.

6890249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890249 is an equidigital number, since it uses as much as digits as its factorization.

6890249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 6890249 is about 2624.9283799753. The cubic root of 6890249 is about 190.2881040060.

The spelling of 6890249 in words is "six million, eight hundred ninety thousand, two hundred forty-nine".