38881607 has 4 divisors (see below), whose sum is σ = 38904240. Its totient is φ = 38858976.

The previous prime is 38881597. The next prime is 38881613. The reversal of 38881607 is 70618883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70618883 = 2347 ⋅30089.

It is a cyclic number.

It is not a de Polignac number, because 38881607 - 2¹⁴ = 38865223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38881627) 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 3 ways as a sum of consecutive naturals, for example, 8507 + ... + 12252.

It is an arithmetic number, because the mean of its divisors is an integer number (9726060).

Almost surely, 2^38881607 is an apocalyptic number.

38881607 is a deficient number, since it is larger than the sum of its proper divisors (22633).

38881607 is a wasteful number, since it uses less digits than its factorization.

38881607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22632.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 38881607 is about 6235.5117672890. The cubic root of 38881607 is about 338.7776377554. Note that the first 3 decimals are identical.

The spelling of 38881607 in words is "thirty-eight million, eight hundred eighty-one thousand, six hundred seven".