2893868421 has 4 divisors (see below), whose sum is σ = 3858491232. Its totient is φ = 1929245612.

The previous prime is 2893868407. The next prime is 2893868429. The reversal of 2893868421 is 1248683982.

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 2893868421 - 2⁶ = 2893868357 is a prime.

It is a super-2 number, since 2×2893868421² = 16748948876122066482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2893868429) 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, 482311401 + ... + 482311406.

It is an arithmetic number, because the mean of its divisors is an integer number (964622808).

Almost surely, 2^2893868421 is an apocalyptic number.

It is an amenable number.

2893868421 is a deficient number, since it is larger than the sum of its proper divisors (964622811).

2893868421 is an equidigital number, since it uses as much as digits as its factorization.

2893868421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964622810.

The product of its digits is 1327104, while the sum is 51.

The square root of 2893868421 is about 53794.6876652333. The cubic root of 2893868421 is about 1425.0373924322.

The spelling of 2893868421 in words is "two billion, eight hundred ninety-three million, eight hundred sixty-eight thousand, four hundred twenty-one".