8998769405 has 4 divisors (see below), whose sum is σ = 10798523292. Its totient is φ = 7199015520.

The previous prime is 8998769387. The next prime is 8998769407. The reversal of 8998769405 is 5049678998.

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 1293265444 + 7705503961 = 35962^2 + 87781^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8998769405 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 (8998769407) 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, 899876936 + ... + 899876945.

It is an arithmetic number, because the mean of its divisors is an integer number (2699630823).

Almost surely, 2^8998769405 is an apocalyptic number.

It is an amenable number.

8998769405 is a deficient number, since it is larger than the sum of its proper divisors (1799753887).

8998769405 is a wasteful number, since it uses less digits than its factorization.

8998769405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799753886.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The square root of 8998769405 is about 94861.8437782020. The cubic root of 8998769405 is about 2079.9890135175.

The spelling of 8998769405 in words is "eight billion, nine hundred ninety-eight million, seven hundred sixty-nine thousand, four hundred five".