988222813 has 8 divisors (see below), whose sum is σ = 1042725600. Its totient is φ = 933969168.

The previous prime is 988222811. The next prime is 988222847. The reversal of 988222813 is 318222889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 988222813 - 2¹ = 988222811 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 988222813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988222811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54106 + ... + 70027.

It is an arithmetic number, because the mean of its divisors is an integer number (130340700).

Almost surely, 2^988222813 is an apocalyptic number.

It is an amenable number.

988222813 is a deficient number, since it is larger than the sum of its proper divisors (54502787).

988222813 is a wasteful number, since it uses less digits than its factorization.

988222813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124571.

The product of its digits is 110592, while the sum is 43.

The square root of 988222813 is about 31436.0114041206. The cubic root of 988222813 is about 996.0587580186.

The spelling of 988222813 in words is "nine hundred eighty-eight million, two hundred twenty-two thousand, eight hundred thirteen".