84242751 has 16 divisors (see below), whose sum is σ = 118477440. Its totient is φ = 53097120.

The previous prime is 84242731. The next prime is 84242791. The reversal of 84242751 is 15724248.

It is not a de Polignac number, because 84242751 - 2⁶ = 84242687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84242731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33736 + ... + 36146.

It is an arithmetic number, because the mean of its divisors is an integer number (7404840).

Almost surely, 2^84242751 is an apocalyptic number.

84242751 is a deficient number, since it is larger than the sum of its proper divisors (34234689).

84242751 is a wasteful number, since it uses less digits than its factorization.

84242751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046.

The product of its digits is 17920, while the sum is 33.

The square root of 84242751 is about 9178.3849886568. The cubic root of 84242751 is about 438.3733862819.

Adding to 84242751 its reverse (15724248), we get a palindrome (99966999).

It can be divided in two parts, 8424 and 2751, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 84242751 in words is "eighty-four million, two hundred forty-two thousand, seven hundred fifty-one".