39998627 has 4 divisors (see below), whose sum is σ = 41377920. Its totient is φ = 38619336.

The previous prime is 39998611. The next prime is 39998659. The reversal of 39998627 is 72689993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 39998627 - 2⁴ = 39998611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39998677) 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, 689603 + ... + 689660.

It is an arithmetic number, because the mean of its divisors is an integer number (10344480).

Almost surely, 2^39998627 is an apocalyptic number.

39998627 is a deficient number, since it is larger than the sum of its proper divisors (1379293).

39998627 is a wasteful number, since it uses less digits than its factorization.

39998627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379292.

The product of its digits is 1469664, while the sum is 53.

The square root of 39998627 is about 6324.4467742246. The cubic root of 39998627 is about 341.9912762956.

The spelling of 39998627 in words is "thirty-nine million, nine hundred ninety-eight thousand, six hundred twenty-seven".