3680399 has 2 divisors, whose sum is σ = 3680400. Its totient is φ = 3680398.

The previous prime is 3680371. The next prime is 3680401. The reversal of 3680399 is 9930863.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3680399 - 2¹² = 3676303 is a prime.

Together with 3680401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3980399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840199 + 1840200.

It is an arithmetic number, because the mean of its divisors is an integer number (1840200).

Almost surely, 2^3680399 is an apocalyptic number.

3680399 is a deficient number, since it is larger than the sum of its proper divisors (1).

3680399 is an equidigital number, since it uses as much as digits as its factorization.

3680399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3680399 is about 1918.4366030703. The cubic root of 3680399 is about 154.3944322001.

The spelling of 3680399 in words is "three million, six hundred eighty thousand, three hundred ninety-nine".