3920387898 has 16 divisors (see below), whose sum is σ = 8960886720. Its totient is φ = 1120110816.

The previous prime is 3920387893. The next prime is 3920387903. The reversal of 3920387898 is 8987830293.

It is an interprime number because it is at equal distance from previous prime (3920387893) and next prime (3920387903).

It is not an unprimeable number, because it can be changed into a prime (3920387893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46671243 + ... + 46671326.

It is an arithmetic number, because the mean of its divisors is an integer number (560055420).

Almost surely, 2^3920387898 is an apocalyptic number.

3920387898 is an abundant number, since it is smaller than the sum of its proper divisors (5040498822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3920387898 is a wasteful number, since it uses less digits than its factorization.

3920387898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93342581.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 3920387898 is about 62613.0010301375. The cubic root of 3920387898 is about 1576.7990391557.

The spelling of 3920387898 in words is "three billion, nine hundred twenty million, three hundred eighty-seven thousand, eight hundred ninety-eight".