3928998293 has 4 divisors (see below), whose sum is σ = 4286179968. Its totient is φ = 3571816620.

The previous prime is 3928998287. The next prime is 3928998317.

It is a happy number.

3928998293 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3928998293 - 2⁸ = 3928998037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928998233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178590821 + ... + 178590842.

It is an arithmetic number, because the mean of its divisors is an integer number (1071544992).

Almost surely, 2^3928998293 is an apocalyptic number.

It is an amenable number.

3928998293 is a deficient number, since it is larger than the sum of its proper divisors (357181675).

3928998293 is a wasteful number, since it uses less digits than its factorization.

3928998293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357181674.

The product of its digits is 15116544, while the sum is 62.

The square root of 3928998293 is about 62681.7221604512. The cubic root of 3928998293 is about 1577.9525759443.

The spelling of 3928998293 in words is "three billion, nine hundred twenty-eight million, nine hundred ninety-eight thousand, two hundred ninety-three".