82895640 has 64 divisors (see below), whose sum is σ = 249557760. Its totient is φ = 22028160.

The previous prime is 82895629. The next prime is 82895641. The reversal of 82895640 is 4659828.

It is a junction number, because it is equal to n+sod(n) for n = 82895592 and 82895601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82895641) 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, 38677 + ... + 40763.

It is an arithmetic number, because the mean of its divisors is an integer number (3899340).

Almost surely, 2^82895640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82895640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124778880).

82895640 is an abundant number, since it is smaller than the sum of its proper divisors (166662120).

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

82895640 is a wasteful number, since it uses less digits than its factorization.

82895640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 82895640 is about 9104.7042785584. The cubic root of 82895640 is about 436.0241689040.

The spelling of 82895640 in words is "eighty-two million, eight hundred ninety-five thousand, six hundred forty".