6623897430 has 32 divisors (see below), whose sum is σ = 16121265408. Its totient is φ = 1741493600.

The previous prime is 6623897407. The next prime is 6623897431. The reversal of 6623897430 is 347983266.

It is a self number, because there is not a number n which added to its sum of digits gives 6623897430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623897431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1552776 + ... + 1557035.

It is an arithmetic number, because the mean of its divisors is an integer number (503789544).

Almost surely, 2^6623897430 is an apocalyptic number.

6623897430 is an abundant number, since it is smaller than the sum of its proper divisors (9497367978).

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

6623897430 is a wasteful number, since it uses less digits than its factorization.

6623897430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109892.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The square root of 6623897430 is about 81387.3296650038. The cubic root of 6623897430 is about 1878.0386809405.

The spelling of 6623897430 in words is "six billion, six hundred twenty-three million, eight hundred ninety-seven thousand, four hundred thirty".