85983980 has 24 divisors (see below), whose sum is σ = 181325760. Its totient is φ = 34248960.

The previous prime is 85983973. The next prime is 85983983. The reversal of 85983980 is 8938958.

It is not an unprimeable number, because it can be changed into a prime (85983983) 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, 4100 + ... + 13739.

It is an arithmetic number, because the mean of its divisors is an integer number (7555240).

Almost surely, 2^85983980 is an apocalyptic number.

It is an amenable number.

85983980 is an abundant number, since it is smaller than the sum of its proper divisors (95341780).

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

85983980 is a wasteful number, since it uses less digits than its factorization.

85983980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18089 (or 18087 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 85983980 is about 9272.7547147544. The cubic root of 85983980 is about 441.3730866509.

The spelling of 85983980 in words is "eighty-five million, nine hundred eighty-three thousand, nine hundred eighty".