984978086 has 8 divisors (see below), whose sum is σ = 1483598424. Its totient is φ = 490445280.

The previous prime is 984978067. The next prime is 984978089. The reversal of 984978086 is 680879489.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984978089) 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, 1021280 + ... + 1022243.

It is an arithmetic number, because the mean of its divisors is an integer number (185449803).

Almost surely, 2^984978086 is an apocalyptic number.

984978086 is a deficient number, since it is larger than the sum of its proper divisors (498620338).

984978086 is a wasteful number, since it uses less digits than its factorization.

984978086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043766.

The product of its (nonzero) digits is 6967296, while the sum is 59.

The square root of 984978086 is about 31384.3605319592. The cubic root of 984978086 is about 994.9674108667.

The spelling of 984978086 in words is "nine hundred eighty-four million, nine hundred seventy-eight thousand, eighty-six".