2828479421 has 2 divisors, whose sum is σ = 2828479422. Its totient is φ = 2828479420.

The previous prime is 2828479399. The next prime is 2828479429. The reversal of 2828479421 is 1249748282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2602428196 + 226051225 = 51014^2 + 15035^2 .

It is a cyclic number.

It is not a de Polignac number, because 2828479421 - 2²² = 2824285117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2828479429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1414239710 + 1414239711.

It is an arithmetic number, because the mean of its divisors is an integer number (1414239711).

Almost surely, 2^2828479421 is an apocalyptic number.

It is an amenable number.

2828479421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2828479421 is an equidigital number, since it uses as much as digits as its factorization.

2828479421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 47.

The square root of 2828479421 is about 53183.4506308118. The cubic root of 2828479421 is about 1414.2222783617. Note that the first 4 decimals are identical.

The spelling of 2828479421 in words is "two billion, eight hundred twenty-eight million, four hundred seventy-nine thousand, four hundred twenty-one".