6308902421 has 4 divisors (see below), whose sum is σ = 6319836972. Its totient is φ = 6297967872.

The previous prime is 6308902403. The next prime is 6308902463. The reversal of 6308902421 is 1242098036.

6308902421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3041522500 + 3267379921 = 55150^2 + 57161^2 .

It is a cyclic number.

It is not a de Polignac number, because 6308902421 - 2¹⁰ = 6308901397 is a prime.

It is a super-2 number, since 2×6308902421² = 79604499515399322482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6308992421) 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, 5466410 + ... + 5467563.

It is an arithmetic number, because the mean of its divisors is an integer number (1579959243).

Almost surely, 2^6308902421 is an apocalyptic number.

It is an amenable number.

6308902421 is a deficient number, since it is larger than the sum of its proper divisors (10934551).

6308902421 is a wasteful number, since it uses less digits than its factorization.

6308902421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10934550.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 6308902421 is about 79428.5995155397. The cubic root of 6308902421 is about 1847.7842887596.

The spelling of 6308902421 in words is "six billion, three hundred eight million, nine hundred two thousand, four hundred twenty-one".