3989520254 has 8 divisors (see below), whose sum is σ = 6336296928. Its totient is φ = 1877421280.

The previous prime is 3989520229. The next prime is 3989520289. The reversal of 3989520254 is 4520259893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3989520199 and 3989520208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58669382 + ... + 58669449.

It is an arithmetic number, because the mean of its divisors is an integer number (792037116).

Almost surely, 2^3989520254 is an apocalyptic number.

3989520254 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3989520254 is a deficient number, since it is larger than the sum of its proper divisors (2346776674).

3989520254 is a wasteful number, since it uses less digits than its factorization.

3989520254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117338850.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 3989520254 is about 63162.6492002987. The cubic root of 3989520254 is about 1586.0135428812.

The spelling of 3989520254 in words is "three billion, nine hundred eighty-nine million, five hundred twenty thousand, two hundred fifty-four".