84985637 has 4 divisors (see below), whose sum is σ = 92711616. Its totient is φ = 77259660.

The previous prime is 84985597. The next prime is 84985643. The reversal of 84985637 is 73658948.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84985637 - 2¹² = 84981541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84985657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3862973 + ... + 3862994.

It is an arithmetic number, because the mean of its divisors is an integer number (23177904).

Almost surely, 2^84985637 is an apocalyptic number.

It is an amenable number.

84985637 is a deficient number, since it is larger than the sum of its proper divisors (7725979).

84985637 is a wasteful number, since it uses less digits than its factorization.

84985637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725978.

The product of its digits is 1451520, while the sum is 50.

The square root of 84985637 is about 9218.7654813429. The cubic root of 84985637 is about 439.6582004621.

The spelling of 84985637 in words is "eighty-four million, nine hundred eighty-five thousand, six hundred thirty-seven".