84188445 has 16 divisors (see below), whose sum is σ = 146947392. Its totient is φ = 40818560.

The previous prime is 84188417. The next prime is 84188459. The reversal of 84188445 is 54488148.

It is not a de Polignac number, because 84188445 - 2¹² = 84184349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84188397 and 84188406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254952 + ... + 255281.

It is an arithmetic number, because the mean of its divisors is an integer number (9184212).

Almost surely, 2^84188445 is an apocalyptic number.

It is an amenable number.

84188445 is a deficient number, since it is larger than the sum of its proper divisors (62758947).

84188445 is a wasteful number, since it uses less digits than its factorization.

84188445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510252.

The product of its digits is 163840, while the sum is 42.

The square root of 84188445 is about 9175.4261481416. The cubic root of 84188445 is about 438.2791687888.

The spelling of 84188445 in words is "eighty-four million, one hundred eighty-eight thousand, four hundred forty-five".