84045511 has 6 divisors (see below), whose sum is σ = 92380736. Its totient is φ = 76404900.

The previous prime is 84045503. The next prime is 84045581. The reversal of 84045511 is 11554048.

It is not a de Polignac number, because 84045511 - 2³ = 84045503 is a prime.

It is a super-2 number, since 2×84045511² = 14127295838502242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84045511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84045581) 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 5 ways as a sum of consecutive naturals, for example, 347175 + ... + 347416.

Almost surely, 2^84045511 is an apocalyptic number.

84045511 is a deficient number, since it is larger than the sum of its proper divisors (8335225).

84045511 is a wasteful number, since it uses less digits than its factorization.

84045511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694613 (or 694602 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 84045511 is about 9167.6338823057. The cubic root of 84045511 is about 438.0309934769.

Adding to 84045511 its reverse (11554048), we get a palindrome (95599559).

The spelling of 84045511 in words is "eighty-four million, forty-five thousand, five hundred eleven".