1984958086 has 16 divisors (see below), whose sum is σ = 3095608320. Its totient is φ = 953549640.

The previous prime is 1984958081. The next prime is 1984958089. The reversal of 1984958086 is 6808594891.

It is a self number, because there is not a number n which added to its sum of digits gives 1984958086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984958081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106546 + ... + 123781.

It is an arithmetic number, because the mean of its divisors is an integer number (193475520).

Almost surely, 2^1984958086 is an apocalyptic number.

1984958086 is a deficient number, since it is larger than the sum of its proper divisors (1110650234).

1984958086 is a wasteful number, since it uses less digits than its factorization.

1984958086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230499.

The product of its (nonzero) digits is 4976640, while the sum is 58.

The square root of 1984958086 is about 44552.8684373969. The cubic root of 1984958086 is about 1256.7544940536.

The spelling of 1984958086 in words is "one billion, nine hundred eighty-four million, nine hundred fifty-eight thousand, eighty-six".