9949716401 has 4 divisors (see below), whose sum is σ = 10292810100. Its totient is φ = 9606622704.

The previous prime is 9949716389. The next prime is 9949716407. The reversal of 9949716401 is 1046179499.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7992538801 + 1957177600 = 89401^2 + 44240^2 .

It is a cyclic number.

It is not a de Polignac number, because 9949716401 - 2¹⁸ = 9949454257 is a prime.

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 9949716401.

It is not an unprimeable number, because it can be changed into a prime (9949716407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171546806 + ... + 171546863.

It is an arithmetic number, because the mean of its divisors is an integer number (2573202525).

Almost surely, 2^9949716401 is an apocalyptic number.

It is an amenable number.

9949716401 is a deficient number, since it is larger than the sum of its proper divisors (343093699).

9949716401 is a wasteful number, since it uses less digits than its factorization.

9949716401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343093698.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 9949716401 is about 99748.2651528336. The cubic root of 9949716401 is about 2150.8175294442.

The spelling of 9949716401 in words is "nine billion, nine hundred forty-nine million, seven hundred sixteen thousand, four hundred one".