39998654 has 16 divisors (see below), whose sum is σ = 63767088. Its totient is φ = 18751872.

The previous prime is 39998611. The next prime is 39998659. The reversal of 39998654 is 45689993.

39998654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39998596 and 39998605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39998659) 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, 7544 + ... + 11700.

It is an arithmetic number, because the mean of its divisors is an integer number (3985443).

Almost surely, 2^39998654 is an apocalyptic number.

39998654 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39998654 is a deficient number, since it is larger than the sum of its proper divisors (23768434).

39998654 is a wasteful number, since it uses less digits than its factorization.

39998654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459.

The product of its digits is 2099520, while the sum is 53.

The square root of 39998654 is about 6324.4489087983. The cubic root of 39998654 is about 341.9913532463.

The spelling of 39998654 in words is "thirty-nine million, nine hundred ninety-eight thousand, six hundred fifty-four".