9906017444 has 6 divisors (see below), whose sum is σ = 17335530534. Its totient is φ = 4953008720.

The previous prime is 9906017353. The next prime is 9906017447. The reversal of 9906017444 is 4447106099.

It can be written as a sum of positive squares in only one way, i.e., 9469625344 + 436392100 = 97312^2 + 20890^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9906017395 and 9906017404.

It is not an unprimeable number, because it can be changed into a prime (9906017447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1238252177 + ... + 1238252184.

It is an arithmetic number, because the mean of its divisors is an integer number (2889255089).

Almost surely, 2^9906017444 is an apocalyptic number.

It is an amenable number.

9906017444 is a deficient number, since it is larger than the sum of its proper divisors (7429513090).

9906017444 is a wasteful number, since it uses less digits than its factorization.

9906017444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476504365 (or 2476504363 counting only the distinct ones).

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

The square root of 9906017444 is about 99528.9779109582. The cubic root of 9906017444 is about 2147.6641257296.

The spelling of 9906017444 in words is "nine billion, nine hundred six million, seventeen thousand, four hundred forty-four".