38645789 has 8 divisors (see below), whose sum is σ = 47564160. Its totient is φ = 30576816.

The previous prime is 38645771. The next prime is 38645807. The reversal of 38645789 is 98754683.

It is an interprime number because it is at equal distance from previous prime (38645771) and next prime (38645807).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38645789 - 2¹² = 38641693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38645749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212249 + ... + 212430.

It is an arithmetic number, because the mean of its divisors is an integer number (5945520).

Almost surely, 2^38645789 is an apocalyptic number.

It is an amenable number.

38645789 is a deficient number, since it is larger than the sum of its proper divisors (8918371).

38645789 is a wasteful number, since it uses less digits than its factorization.

38645789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424699.

The product of its digits is 1451520, while the sum is 50.

The square root of 38645789 is about 6216.5737347835. The cubic root of 38645789 is about 338.0913499107.

The spelling of 38645789 in words is "thirty-eight million, six hundred forty-five thousand, seven hundred eighty-nine".