82727240 has 32 divisors (see below), whose sum is σ = 187488000. Its totient is φ = 32850624.

The previous prime is 82727237. The next prime is 82727269. The reversal of 82727240 is 4272728.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 82727197 and 82727206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1880 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (5859000).

Almost surely, 2^82727240 is an apocalyptic number.

It is an amenable number.

82727240 is an abundant number, since it is smaller than the sum of its proper divisors (104760760).

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

82727240 is a wasteful number, since it uses less digits than its factorization.

82727240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15029 (or 15025 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 82727240 is about 9095.4516105579. The cubic root of 82727240 is about 435.7287120804.

Adding to 82727240 its reverse (4272728), we get a palindrome (86999968).

The spelling of 82727240 in words is "eighty-two million, seven hundred twenty-seven thousand, two hundred forty".