2928383121 has 4 divisors (see below), whose sum is σ = 3904510832. Its totient is φ = 1952255412.

The previous prime is 2928383099. The next prime is 2928383131. The reversal of 2928383121 is 1213838292.

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 not a de Polignac number, because 2928383121 - 2¹¹ = 2928381073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2928383121.

It is not an unprimeable number, because it can be changed into a prime (2928383131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488063851 + ... + 488063856.

It is an arithmetic number, because the mean of its divisors is an integer number (976127708).

Almost surely, 2^2928383121 is an apocalyptic number.

It is an amenable number.

2928383121 is a deficient number, since it is larger than the sum of its proper divisors (976127711).

2928383121 is an equidigital number, since it uses as much as digits as its factorization.

2928383121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976127710.

The product of its digits is 41472, while the sum is 39.

The square root of 2928383121 is about 54114.5370579847. The cubic root of 2928383121 is about 1430.6804138057.

The spelling of 2928383121 in words is "two billion, nine hundred twenty-eight million, three hundred eighty-three thousand, one hundred twenty-one".