84280436 has 12 divisors (see below), whose sum is σ = 147558180. Its totient is φ = 42120960.

The previous prime is 84280433. The next prime is 84280459. The reversal of 84280436 is 63408248.

It can be written as a sum of positive squares in 2 ways, for example, as 45292900 + 38987536 = 6730^2 + 6244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84280396 and 84280405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84280433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10310 + ... + 16578.

It is an arithmetic number, because the mean of its divisors is an integer number (12296515).

Almost surely, 2^84280436 is an apocalyptic number.

It is an amenable number.

84280436 is a deficient number, since it is larger than the sum of its proper divisors (63277744).

84280436 is a wasteful number, since it uses less digits than its factorization.

84280436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634 (or 9632 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 84280436 is about 9180.4376801980. The cubic root of 84280436 is about 438.4387435901.

The spelling of 84280436 in words is "eighty-four million, two hundred eighty thousand, four hundred thirty-six".