39609998 has 16 divisors (see below), whose sum is σ = 62387280. Its totient is φ = 18834816.

The previous prime is 39609991. The next prime is 39610013. The reversal of 39609998 is 89990693.

39609998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39609991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211 + ... + 8982.

It is an arithmetic number, because the mean of its divisors is an integer number (3899205).

Almost surely, 2^39609998 is an apocalyptic number.

39609998 is a deficient number, since it is larger than the sum of its proper divisors (22777282).

39609998 is a wasteful number, since it uses less digits than its factorization.

With its successor (39609999) it forms an eRAP, since the sums of their prime factors are consecutive (10291 and 10292).

39609998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 39609998 is about 6293.6474321335. The cubic root of 39609998 is about 340.8800672137.

The spelling of 39609998 in words is "thirty-nine million, six hundred nine thousand, nine hundred ninety-eight".