84080045 has 16 divisors (see below), whose sum is σ = 122093568. Its totient is φ = 54263040.

The previous prime is 84080041. The next prime is 84080083. The reversal of 84080045 is 54008048.

It is not a de Polignac number, because 84080045 - 2² = 84080041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84080041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70061 + ... + 71250.

It is an arithmetic number, because the mean of its divisors is an integer number (7630848).

Almost surely, 2^84080045 is an apocalyptic number.

84080045 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

84080045 is a deficient number, since it is larger than the sum of its proper divisors (38013523).

84080045 is a wasteful number, since it uses less digits than its factorization.

84080045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141340.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 84080045 is about 9169.5171628609. The cubic root of 84080045 is about 438.0909803846.

The spelling of 84080045 in words is "eighty-four million, eighty thousand, forty-five".