911983398 has 16 divisors (see below), whose sum is σ = 1824296256. Its totient is φ = 303939560.

The previous prime is 911983393. The next prime is 911983403. The reversal of 911983398 is 893389119.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (911983393) and next prime (911983403).

It is a self number, because there is not a number n which added to its sum of digits gives 911983398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (911983393) 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, 36265 + ... + 56027.

It is an arithmetic number, because the mean of its divisors is an integer number (114018516).

Almost surely, 2^911983398 is an apocalyptic number.

911983398 is an abundant number, since it is smaller than the sum of its proper divisors (912312858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

911983398 is a wasteful number, since it uses less digits than its factorization.

911983398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27459.

The product of its digits is 419904, while the sum is 51.

The square root of 911983398 is about 30199.0628662546. The cubic root of 911983398 is about 969.7556326364.

The spelling of 911983398 in words is "nine hundred eleven million, nine hundred eighty-three thousand, three hundred ninety-eight".