84879650 has 48 divisors (see below), whose sum is σ = 169810560. Its totient is φ = 31464000.

The previous prime is 84879649. The next prime is 84879673. The reversal of 84879650 is 5697848.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 84879595 and 84879604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43700 + ... + 45600.

It is an arithmetic number, because the mean of its divisors is an integer number (3537720).

Almost surely, 2^84879650 is an apocalyptic number.

84879650 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

84879650 is a wasteful number, since it uses less digits than its factorization.

84879650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 84879650 is about 9213.0152501773. The cubic root of 84879650 is about 439.4753560826.

84879650 divided by its sum of digits (47) gives a triangular number (1805950 = T₁₉₀₀).

The spelling of 84879650 in words is "eighty-four million, eight hundred seventy-nine thousand, six hundred fifty".