9449100921 has 16 divisors (see below), whose sum is σ = 13587613760. Its totient is φ = 5806399680.

The previous prime is 9449100911. The next prime is 9449100931. The reversal of 9449100921 is 1290019449.

It is an interprime number because it is at equal distance from previous prime (9449100911) and next prime (9449100931).

It is not a de Polignac number, because 9449100921 - 2⁵ = 9449100889 is a prime.

It is a super-3 number, since 3×9449100921³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9449100921.

It is not an unprimeable number, because it can be changed into a prime (9449100911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148366 + ... + 202263.

It is an arithmetic number, because the mean of its divisors is an integer number (849225860).

Almost surely, 2^9449100921 is an apocalyptic number.

It is an amenable number.

9449100921 is a deficient number, since it is larger than the sum of its proper divisors (4138512839).

9449100921 is a wasteful number, since it uses less digits than its factorization.

9449100921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351336.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 9449100921 is about 97206.4860027354. The cubic root of 9449100921 is about 2114.1225690454.

The spelling of 9449100921 in words is "nine billion, four hundred forty-nine million, one hundred thousand, nine hundred twenty-one".