9028736621 has 8 divisors (see below), whose sum is σ = 9165197760. Its totient is φ = 8892325728.

The previous prime is 9028736603. The next prime is 9028736671. The reversal of 9028736621 is 1266378209.

9028736621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9028736621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9028736671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515120 + ... + 532358.

It is an arithmetic number, because the mean of its divisors is an integer number (1145649720).

Almost surely, 2^9028736621 is an apocalyptic number.

It is an amenable number.

9028736621 is a deficient number, since it is larger than the sum of its proper divisors (136461139).

9028736621 is a wasteful number, since it uses less digits than its factorization.

9028736621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25123.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 9028736621 is about 95019.6643911143. The cubic root of 9028736621 is about 2082.2953443054.

The spelling of 9028736621 in words is "nine billion, twenty-eight million, seven hundred thirty-six thousand, six hundred twenty-one".