3685825487 has 2 divisors, whose sum is σ = 3685825488. Its totient is φ = 3685825486.

The previous prime is 3685825477. The next prime is 3685825489. The reversal of 3685825487 is 7845285863.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3685825487 is a prime.

Together with 3685825489, 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 (3685825489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842912743 + 1842912744.

It is an arithmetic number, because the mean of its divisors is an integer number (1842912744).

Almost surely, 2^3685825487 is an apocalyptic number.

3685825487 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685825487 is an equidigital number, since it uses as much as digits as its factorization.

3685825487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12902400, while the sum is 56.

The square root of 3685825487 is about 60710.9997199848. Note that the first 3 decimals coincide. The cubic root of 3685825487 is about 1544.7027614598.

The spelling of 3685825487 in words is "three billion, six hundred eighty-five million, eight hundred twenty-five thousand, four hundred eighty-seven".