988436399 has 8 divisors (see below), whose sum is σ = 1021441872. Its totient is φ = 955886400.

The previous prime is 988436353. The next prime is 988436413. The reversal of 988436399 is 993634889.

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

It is a cyclic number.

It is not a de Polignac number, because 988436399 - 2²⁰ = 987387823 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 (988436299) 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, 109454 + ... + 118139.

It is an arithmetic number, because the mean of its divisors is an integer number (127680234).

Almost surely, 2^988436399 is an apocalyptic number.

988436399 is a deficient number, since it is larger than the sum of its proper divisors (33005473).

988436399 is a wasteful number, since it uses less digits than its factorization.

988436399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227737.

The product of its digits is 10077696, while the sum is 59.

The square root of 988436399 is about 31439.4083754768. The cubic root of 988436399 is about 996.1305127140.

The spelling of 988436399 in words is "nine hundred eighty-eight million, four hundred thirty-six thousand, three hundred ninety-nine".