3638473 has 2 divisors, whose sum is σ = 3638474. Its totient is φ = 3638472.

The previous prime is 3638419. The next prime is 3638477. The reversal of 3638473 is 3748363.

It is a happy number.

3638473 is nontrivially palindromic in base 12.

3638473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 1530169 = 1452^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 3638473 - 2¹³ = 3630281 is a prime.

It is not a weakly prime, because it can be changed into another prime (3638477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819236 + 1819237.

It is an arithmetic number, because the mean of its divisors is an integer number (1819237).

Almost surely, 2^3638473 is an apocalyptic number.

It is an amenable number.

3638473 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638473 is an equidigital number, since it uses as much as digits as its factorization.

3638473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 3638473 is about 1907.4781781190. The cubic root of 3638473 is about 153.8059201265.

It can be divided in two parts, 363 and 8473, that added together give a square (8836 = 94²).

The spelling of 3638473 in words is "three million, six hundred thirty-eight thousand, four hundred seventy-three".