38645827 has 6 divisors (see below), whose sum is σ = 42478604. Its totient is φ = 35132460.

The previous prime is 38645813. The next prime is 38645837. The reversal of 38645827 is 72854683.

It is not a de Polignac number, because 38645827 - 2⁷ = 38645699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38645807) 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 in 5 ways as a sum of consecutive naturals, for example, 159573 + ... + 159814.

Almost surely, 2^38645827 is an apocalyptic number.

38645827 is a deficient number, since it is larger than the sum of its proper divisors (3832777).

38645827 is a wasteful number, since it uses less digits than its factorization.

38645827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319409 (or 319398 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 38645827 is about 6216.5767911287. The cubic root of 38645827 is about 338.0914607246.

Subtracting 38645827 from its reverse (72854683), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 38645827 in words is "thirty-eight million, six hundred forty-five thousand, eight hundred twenty-seven".