9828626421 has 8 divisors (see below), whose sum is σ = 13107011104. Its totient is φ = 6551329680.

The previous prime is 9828626411. The next prime is 9828626429. The reversal of 9828626421 is 1246268289.

It is a happy number.

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

It is not a de Polignac number, because 9828626421 - 2²² = 9824432117 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 (9828626429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250666 + ... + 287211.

It is an arithmetic number, because the mean of its divisors is an integer number (1638376388).

Almost surely, 2^9828626421 is an apocalyptic number.

It is an amenable number.

9828626421 is a deficient number, since it is larger than the sum of its proper divisors (3278384683).

9828626421 is a wasteful number, since it uses less digits than its factorization.

9828626421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543971.

The product of its digits is 663552, while the sum is 48.

The square root of 9828626421 is about 99139.4291944431. The cubic root of 9828626421 is about 2142.0566030633.

The spelling of 9828626421 in words is "nine billion, eight hundred twenty-eight million, six hundred twenty-six thousand, four hundred twenty-one".