2991384998 has 8 divisors (see below), whose sum is σ = 5128088592. Its totient is φ = 1282022136.

The previous prime is 2991384997. The next prime is 2991385049. The reversal of 2991384998 is 8994831992.

2991384998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2991384998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991384997) 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, 106835165 + ... + 106835192.

It is an arithmetic number, because the mean of its divisors is an integer number (641011074).

Almost surely, 2^2991384998 is an apocalyptic number.

2991384998 is a deficient number, since it is larger than the sum of its proper divisors (2136703594).

2991384998 is a wasteful number, since it uses less digits than its factorization.

2991384998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213670366.

The product of its digits is 10077696, while the sum is 62.

The square root of 2991384998 is about 54693.5553607553. Note that the first 3 decimals coincide. The cubic root of 2991384998 is about 1440.8676930389.

The spelling of 2991384998 in words is "two billion, nine hundred ninety-one million, three hundred eighty-four thousand, nine hundred ninety-eight".