83564562 has 16 divisors (see below), whose sum is σ = 167222880. Its totient is φ = 27839232.

The previous prime is 83564557. The next prime is 83564563. The reversal of 83564562 is 26546538.

It is a self number, because there is not a number n which added to its sum of digits gives 83564562.

It is not an unprimeable number, because it can be changed into a prime (83564563) 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, 13989 + ... + 19047.

It is an arithmetic number, because the mean of its divisors is an integer number (10451430).

Almost surely, 2^83564562 is an apocalyptic number.

83564562 is an abundant number, since it is smaller than the sum of its proper divisors (83658318).

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

83564562 is a wasteful number, since it uses less digits than its factorization.

83564562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7817.

The product of its digits is 172800, while the sum is 39.

The square root of 83564562 is about 9141.3654341132. The cubic root of 83564562 is about 437.1938529756.

The spelling of 83564562 in words is "eighty-three million, five hundred sixty-four thousand, five hundred sixty-two".