84450845 has 4 divisors (see below), whose sum is σ = 101341020. Its totient is φ = 67560672.

The previous prime is 84450829. The next prime is 84450881. The reversal of 84450845 is 54805448.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35366809 + 49084036 = 5947^2 + 7006^2 .

It is a cyclic number.

It is not a de Polignac number, because 84450845 - 2⁴ = 84450829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84450799 and 84450808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8445080 + ... + 8445089.

It is an arithmetic number, because the mean of its divisors is an integer number (25335255).

Almost surely, 2^84450845 is an apocalyptic number.

It is an amenable number.

84450845 is a deficient number, since it is larger than the sum of its proper divisors (16890175).

84450845 is a wasteful number, since it uses less digits than its factorization.

84450845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890174.

The product of its (nonzero) digits is 102400, while the sum is 38.

The square root of 84450845 is about 9189.7140869561. The cubic root of 84450845 is about 438.7340418922.

The spelling of 84450845 in words is "eighty-four million, four hundred fifty thousand, eight hundred forty-five".