3638827 has 2 divisors, whose sum is σ = 3638828. Its totient is φ = 3638826.

The previous prime is 3638809. The next prime is 3638851. The reversal of 3638827 is 7288363.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3638827 - 2⁷ = 3638699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3638027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819413 + 1819414.

It is an arithmetic number, because the mean of its divisors is an integer number (1819414).

Almost surely, 2^3638827 is an apocalyptic number.

3638827 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638827 is an equidigital number, since it uses as much as digits as its factorization.

3638827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 3638827 is about 1907.5709685356. The cubic root of 3638827 is about 153.8109080733.

It can be divided in two parts, 3638 and 827, that added together give a triangular number (4465 = T₉₄).

The spelling of 3638827 in words is "three million, six hundred thirty-eight thousand, eight hundred twenty-seven".