981847812 has 24 divisors (see below), whose sum is σ = 2499249312. Its totient is φ = 297529600.

The previous prime is 981847793. The next prime is 981847877. The reversal of 981847812 is 218748189.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3718989 + ... + 3719252.

It is an arithmetic number, because the mean of its divisors is an integer number (104135388).

Almost surely, 2^981847812 is an apocalyptic number.

It is an amenable number.

981847812 is an abundant number, since it is smaller than the sum of its proper divisors (1517401500).

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

981847812 is a wasteful number, since it uses less digits than its factorization.

981847812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7438259 (or 7438257 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 981847812 is about 31334.4508807798. The cubic root of 981847812 is about 993.9122856042.

It can be divided in two parts, 9818 and 47812, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 981847812 in words is "nine hundred eighty-one million, eight hundred forty-seven thousand, eight hundred twelve".