84480045 has 32 divisors (see below), whose sum is σ = 150595200. Its totient is φ = 40153344.

The previous prime is 84480041. The next prime is 84480083. The reversal of 84480045 is 54008448.

84480045 = 924² + 925² + ... + 1013².

It is not a de Polignac number, because 84480045 - 2² = 84480041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84479988 and 84480015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84480041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1815 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (4706100).

Almost surely, 2^84480045 is an apocalyptic number.

It is an amenable number.

84480045 is a deficient number, since it is larger than the sum of its proper divisors (66115155).

84480045 is a wasteful number, since it uses less digits than its factorization.

84480045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14989.

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 84480045 is about 9191.3026824276. The cubic root of 84480045 is about 438.7846021038.

The spelling of 84480045 in words is "eighty-four million, four hundred eighty thousand, forty-five".