38644697 has 8 divisors (see below), whose sum is σ = 47562816. Its totient is φ = 30575952.

The previous prime is 38644633. The next prime is 38644699. The reversal of 38644697 is 79644683.

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 38644697 - 2⁶ = 38644633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38644699) 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, 212243 + ... + 212424.

It is an arithmetic number, because the mean of its divisors is an integer number (5945352).

Almost surely, 2^38644697 is an apocalyptic number.

It is an amenable number.

38644697 is a deficient number, since it is larger than the sum of its proper divisors (8918119).

38644697 is a wasteful number, since it uses less digits than its factorization.

38644697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424687.

The product of its digits is 870912, while the sum is 47.

The square root of 38644697 is about 6216.4859044319. The cubic root of 38644697 is about 338.0881654393.

The spelling of 38644697 in words is "thirty-eight million, six hundred forty-four thousand, six hundred ninety-seven".