82269564 has 48 divisors (see below), whose sum is σ = 207855648. Its totient is φ = 25175808.

The previous prime is 82269559. The next prime is 82269569. The reversal of 82269564 is 46596228.

It is an interprime number because it is at equal distance from previous prime (82269559) and next prime (82269569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82269569) 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, 29394 + ... + 32070.

It is an arithmetic number, because the mean of its divisors is an integer number (4330326).

Almost surely, 2^82269564 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 82269564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103927824).

82269564 is an abundant number, since it is smaller than the sum of its proper divisors (125586084).

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

82269564 is a wasteful number, since it uses less digits than its factorization.

82269564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2892 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 82269564 is about 9070.2571077120. The cubic root of 82269564 is about 434.9236911990.

The spelling of 82269564 in words is "eighty-two million, two hundred sixty-nine thousand, five hundred sixty-four".