84709988 has 12 divisors (see below), whose sum is σ = 161719152. Its totient is φ = 38504520.

The previous prime is 84709973. The next prime is 84710069. The reversal of 84709988 is 88990748.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962570 + ... + 962657.

It is an arithmetic number, because the mean of its divisors is an integer number (13476596).

Almost surely, 2^84709988 is an apocalyptic number.

It is an amenable number.

84709988 is a deficient number, since it is larger than the sum of its proper divisors (77009164).

84709988 is a wasteful number, since it uses less digits than its factorization.

84709988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925242 (or 1925240 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 84709988 is about 9203.8029096673. The cubic root of 84709988 is about 439.1823451242.

The spelling of 84709988 in words is "eighty-four million, seven hundred nine thousand, nine hundred eighty-eight".