84040016 has 10 divisors (see below), whose sum is σ = 162827562. Its totient is φ = 42020000.

The previous prime is 84040007. The next prime is 84040079. The reversal of 84040016 is 61004048.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53348416 + 30691600 = 7304^2 + 5540^2 .

It is a junction number, because it is equal to n+sod(n) for n = 84039973 and 84040000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626235 + ... + 2626266.

Almost surely, 2^84040016 is an apocalyptic number.

It is an amenable number.

84040016 is a deficient number, since it is larger than the sum of its proper divisors (78787546).

84040016 is a wasteful number, since it uses less digits than its factorization.

84040016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252509 (or 5252503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 84040016 is about 9167.3341817564. The cubic root of 84040016 is about 438.0214469319.

The spelling of 84040016 in words is "eighty-four million, forty thousand, sixteen".