83646534 has 16 divisors (see below), whose sum is σ = 168013872. Its totient is φ = 27762048.

The previous prime is 83646533. The next prime is 83646557. The reversal of 83646534 is 43564638.

It is a junction number, because it is equal to n+sod(n) for n = 83646492 and 83646501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83646533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28519 + ... + 31314.

It is an arithmetic number, because the mean of its divisors is an integer number (10500867).

Almost surely, 2^83646534 is an apocalyptic number.

83646534 is an abundant number, since it is smaller than the sum of its proper divisors (84367338).

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

83646534 is a wasteful number, since it uses less digits than its factorization.

83646534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60071.

The product of its digits is 207360, while the sum is 39.

The square root of 83646534 is about 9145.8479103908. The cubic root of 83646534 is about 437.3367602153.

The spelling of 83646534 in words is "eighty-three million, six hundred forty-six thousand, five hundred thirty-four".