82470570 has 128 divisors (see below), whose sum is σ = 258080256. Its totient is φ = 16367616.

The previous prime is 82470569. The next prime is 82470589. The reversal of 82470570 is 7507428.

It is a super-2 number, since 2×82470570² = 13602789832249800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45522 + ... + 47298.

It is an arithmetic number, because the mean of its divisors is an integer number (2016252).

Almost surely, 2^82470570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82470570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129040128).

82470570 is an abundant number, since it is smaller than the sum of its proper divisors (175609686).

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

82470570 is a wasteful number, since it uses less digits than its factorization.

82470570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 82470570 is about 9081.3308496057. The cubic root of 82470570 is about 435.2776137808.

Adding to 82470570 its reverse (7507428), we get a palindrome (89977998).

The spelling of 82470570 in words is "eighty-two million, four hundred seventy thousand, five hundred seventy".