2307128993 has 8 divisors (see below), whose sum is σ = 2485394688. Its totient is φ = 2128976784.

The previous prime is 2307128977. The next prime is 2307129001. The reversal of 2307128993 is 3998217032.

It is a happy number.

2307128993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2307128993 - 2⁴ = 2307128977 is a prime.

It is a super-3 number, since 3×2307128993³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2307128093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16496 + ... + 69902.

It is an arithmetic number, because the mean of its divisors is an integer number (310674336).

Almost surely, 2^2307128993 is an apocalyptic number.

It is an amenable number.

2307128993 is a deficient number, since it is larger than the sum of its proper divisors (178265695).

2307128993 is a wasteful number, since it uses less digits than its factorization.

2307128993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56743.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 2307128993 is about 48032.5826184685. The cubic root of 2307128993 is about 1321.3685288237.

The spelling of 2307128993 in words is "two billion, three hundred seven million, one hundred twenty-eight thousand, nine hundred ninety-three".