2875212421 has 4 divisors (see below), whose sum is σ = 2878866592. Its totient is φ = 2871558252.

The previous prime is 2875212409. The next prime is 2875212427. The reversal of 2875212421 is 1242125782.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1242125782 = 2 ⋅621062891.

It is a cyclic number.

It is not a de Polignac number, because 2875212421 - 2⁹ = 2875211909 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 (2875212427) 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, 1825905 + ... + 1827478.

It is an arithmetic number, because the mean of its divisors is an integer number (719716648).

Almost surely, 2^2875212421 is an apocalyptic number.

It is an amenable number.

2875212421 is a deficient number, since it is larger than the sum of its proper divisors (3654171).

2875212421 is an equidigital number, since it uses as much as digits as its factorization.

2875212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654170.

The product of its digits is 17920, while the sum is 34.

The square root of 2875212421 is about 53621.0072732693. The cubic root of 2875212421 is about 1421.9685091832.

It can be divided in two parts, 2875 and 212421, that added together give a square (215296 = 464²).

The spelling of 2875212421 in words is "two billion, eight hundred seventy-five million, two hundred twelve thousand, four hundred twenty-one".