3688520827 has 2 divisors, whose sum is σ = 3688520828. Its totient is φ = 3688520826.

The previous prime is 3688520809. The next prime is 3688520831. The reversal of 3688520827 is 7280258863.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3688520827 - 2¹⁵ = 3688488059 is a prime.

It is not a weakly prime, because it can be changed into another prime (3688520807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844260413 + 1844260414.

It is an arithmetic number, because the mean of its divisors is an integer number (1844260414).

Almost surely, 2^3688520827 is an apocalyptic number.

3688520827 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688520827 is an equidigital number, since it uses as much as digits as its factorization.

3688520827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 3688520827 is about 60733.1937823131. The cubic root of 3688520827 is about 1545.0792022042.

The spelling of 3688520827 in words is "three billion, six hundred eighty-eight million, five hundred twenty thousand, eight hundred twenty-seven".