84638485 has 8 divisors (see below), whose sum is σ = 101655000. Its totient is φ = 67651584.

The previous prime is 84638471. The next prime is 84638497. The reversal of 84638485 is 58483648.

It can be written as a sum of positive squares in 4 ways, for example, as 14447601 + 70190884 = 3801^2 + 8378^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84638485 - 2⁵ = 84638453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (12706875).

Almost surely, 2^84638485 is an apocalyptic number.

It is an amenable number.

84638485 is a deficient number, since it is larger than the sum of its proper divisors (17016515).

84638485 is a wasteful number, since it uses less digits than its factorization.

84638485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14807.

The product of its digits is 737280, while the sum is 46.

The square root of 84638485 is about 9199.9176626750. The cubic root of 84638485 is about 439.0587402784.

The spelling of 84638485 in words is "eighty-four million, six hundred thirty-eight thousand, four hundred eighty-five".