84807245 has 4 divisors (see below), whose sum is σ = 101768700. Its totient is φ = 67845792.

The previous prime is 84807209. The next prime is 84807253. The reversal of 84807245 is 54270848.

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 64995844 + 19811401 = 8062^2 + 4451^2 .

It is a cyclic number.

It is not a de Polignac number, because 84807245 - 2⁶ = 84807181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84807199 and 84807208.

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, 8480720 + ... + 8480729.

It is an arithmetic number, because the mean of its divisors is an integer number (25442175).

Almost surely, 2^84807245 is an apocalyptic number.

It is an amenable number.

84807245 is a deficient number, since it is larger than the sum of its proper divisors (16961455).

84807245 is a wasteful number, since it uses less digits than its factorization.

84807245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961454.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 84807245 is about 9209.0849165376. The cubic root of 84807245 is about 439.3503584523.

The spelling of 84807245 in words is "eighty-four million, eight hundred seven thousand, two hundred forty-five".