6323647420 has 24 divisors (see below), whose sum is σ = 14060816784. Its totient is φ = 2380667136.

The previous prime is 6323647361. The next prime is 6323647457. The reversal of 6323647420 is 247463236.

It is a self number, because there is not a number n which added to its sum of digits gives 6323647420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9299142 + ... + 9299821.

It is an arithmetic number, because the mean of its divisors is an integer number (585867366).

Almost surely, 2^6323647420 is an apocalyptic number.

It is an amenable number.

6323647420 is an abundant number, since it is smaller than the sum of its proper divisors (7737169364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6323647420 is a wasteful number, since it uses less digits than its factorization.

6323647420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18598989 (or 18598987 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 37.

The square root of 6323647420 is about 79521.3645506665. The cubic root of 6323647420 is about 1849.2226995064. Note that the first 3 decimals are identical.

The spelling of 6323647420 in words is "six billion, three hundred twenty-three million, six hundred forty-seven thousand, four hundred twenty".