84112740 has 36 divisors (see below), whose sum is σ = 255142524. Its totient is φ = 22430016.

The previous prime is 84112739. The next prime is 84112741. The reversal of 84112740 is 4721148.

It is an interprime number because it is at equal distance from previous prime (84112739) and next prime (84112741).

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 55980324 = 5304^2 + 7482^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (84112741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233467 + ... + 233826.

Almost surely, 2^84112740 is an apocalyptic number.

It is an amenable number.

84112740 is an abundant number, since it is smaller than the sum of its proper divisors (171029784).

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

84112740 is a wasteful number, since it uses less digits than its factorization.

84112740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467308 (or 467303 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 84112740 is about 9171.2997988290. The cubic root of 84112740 is about 438.1477577425.

Adding to 84112740 its reverse (4721148), we get a palindrome (88833888).

The spelling of 84112740 in words is "eighty-four million, one hundred twelve thousand, seven hundred forty".