84547742 has 8 divisors (see below), whose sum is σ = 127100496. Its totient is φ = 42180912.

The previous prime is 84547741. The next prime is 84547751. The reversal of 84547742 is 24774548.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84547742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84547741) 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 3 ways as a sum of consecutive naturals, for example, 45338 + ... + 47165.

It is an arithmetic number, because the mean of its divisors is an integer number (15887562).

Almost surely, 2^84547742 is an apocalyptic number.

84547742 is a deficient number, since it is larger than the sum of its proper divisors (42552754).

84547742 is a wasteful number, since it uses less digits than its factorization.

84547742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92962.

The product of its digits is 250880, while the sum is 41.

The square root of 84547742 is about 9194.9846111889. The cubic root of 84547742 is about 438.9017756143.

The spelling of 84547742 in words is "eighty-four million, five hundred forty-seven thousand, seven hundred forty-two".