2870294721 has 32 divisors (see below), whose sum is σ = 4497604608. Its totient is φ = 1593846720.

The previous prime is 2870294689. The next prime is 2870294737. The reversal of 2870294721 is 1274920782.

It is not a de Polignac number, because 2870294721 - 2⁵ = 2870294689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2870294761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 799296 + ... + 802878.

It is an arithmetic number, because the mean of its divisors is an integer number (140550144).

Almost surely, 2^2870294721 is an apocalyptic number.

2870294721 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2870294721 is a deficient number, since it is larger than the sum of its proper divisors (1627309887).

2870294721 is a wasteful number, since it uses less digits than its factorization.

2870294721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2870294721 is about 53575.1315537349. The cubic root of 2870294721 is about 1421.1573453350.

The spelling of 2870294721 in words is "two billion, eight hundred seventy million, two hundred ninety-four thousand, seven hundred twenty-one".