2602003421 has 2 divisors, whose sum is σ = 2602003422. Its totient is φ = 2602003420.

The previous prime is 2602003381. The next prime is 2602003447. The reversal of 2602003421 is 1243002062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1473715321 + 1128288100 = 38389^2 + 33590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2602003421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2602003393 and 2602003402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2602003721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301001710 + 1301001711.

It is an arithmetic number, because the mean of its divisors is an integer number (1301001711).

Almost surely, 2^2602003421 is an apocalyptic number.

It is an amenable number.

2602003421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2602003421 is an equidigital number, since it uses as much as digits as its factorization.

2602003421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2602003421 is about 51009.8365121865. The cubic root of 2602003421 is about 1375.4219612497.

Adding to 2602003421 its reverse (1243002062), we get a palindrome (3845005483).

The spelling of 2602003421 in words is "two billion, six hundred two million, three thousand, four hundred twenty-one".