84742686 has 40 divisors (see below), whose sum is σ = 217015920. Its totient is φ = 24211872.

The previous prime is 84742673. The next prime is 84742687. The reversal of 84742686 is 68624748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84742687) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 36231 + ... + 38498.

It is an arithmetic number, because the mean of its divisors is an integer number (5425398).

Almost surely, 2^84742686 is an apocalyptic number.

84742686 is an abundant number, since it is smaller than the sum of its proper divisors (132273234).

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

84742686 is a wasteful number, since it uses less digits than its factorization.

84742686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74750 (or 74741 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 84742686 is about 9205.5790692384. The cubic root of 84742686 is about 439.2388458878.

The spelling of 84742686 in words is "eighty-four million, seven hundred forty-two thousand, six hundred eighty-six".