84725140 has 24 divisors (see below), whose sum is σ = 179502120. Its totient is φ = 33589248.

The previous prime is 84725107. The next prime is 84725141. The reversal of 84725140 is 4152748.

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 79174404 = 2356^2 + 8898^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84725141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16485 + ... + 21004.

It is an arithmetic number, because the mean of its divisors is an integer number (7479255).

Almost surely, 2^84725140 is an apocalyptic number.

It is an amenable number.

84725140 is an abundant number, since it is smaller than the sum of its proper divisors (94776980).

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

84725140 is a wasteful number, since it uses less digits than its factorization.

84725140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37611 (or 37609 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 84725140 is about 9204.6260108708. The cubic root of 84725140 is about 439.2085289479.

Adding to 84725140 its reverse (4152748), we get a palindrome (88877888).

The spelling of 84725140 in words is "eighty-four million, seven hundred twenty-five thousand, one hundred forty".