8961298405 has 4 divisors (see below), whose sum is σ = 10753558092. Its totient is φ = 7169038720.

The previous prime is 8961298331. The next prime is 8961298457. The reversal of 8961298405 is 5048921698.

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 6789924801 + 2171373604 = 82401^2 + 46598^2 .

It is not a de Polignac number, because 8961298405 - 2⁹ = 8961297893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896129836 + ... + 896129845.

It is an arithmetic number, because the mean of its divisors is an integer number (2688389523).

Almost surely, 2^8961298405 is an apocalyptic number.

It is an amenable number.

8961298405 is a deficient number, since it is larger than the sum of its proper divisors (1792259687).

8961298405 is a wasteful number, since it uses less digits than its factorization.

8961298405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792259686.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 8961298405 is about 94664.1347343333. The cubic root of 8961298405 is about 2077.0979626849.

The spelling of 8961298405 in words is "eight billion, nine hundred sixty-one million, two hundred ninety-eight thousand, four hundred five".