84345816 has 16 divisors (see below), whose sum is σ = 210864600. Its totient is φ = 28115264.

The previous prime is 84345797. The next prime is 84345827. The reversal of 84345816 is 61854348.

It is a super-2 number, since 2×84345816² = 14228433353411712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757181 + ... + 1757228.

Almost surely, 2^84345816 is an apocalyptic number.

It is an amenable number.

84345816 is an abundant number, since it is smaller than the sum of its proper divisors (126518784).

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

84345816 is a wasteful number, since it uses less digits than its factorization.

84345816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514418 (or 3514414 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 84345816 is about 9183.9978222994. The cubic root of 84345816 is about 438.5520862880.

The spelling of 84345816 in words is "eighty-four million, three hundred forty-five thousand, eight hundred sixteen".