84474559 has 4 divisors (see below), whose sum is σ = 90972616. Its totient is φ = 77976504.

The previous prime is 84474553. The next prime is 84474601. The reversal of 84474559 is 95547448.

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

It is a cyclic number.

It is not a de Polignac number, because 84474559 - 2¹⁷ = 84343487 is a prime.

It is a super-2 number, since 2×84474559² = 14271902236488962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84474553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3249009 + ... + 3249034.

It is an arithmetic number, because the mean of its divisors is an integer number (22743154).

Almost surely, 2^84474559 is an apocalyptic number.

84474559 is a deficient number, since it is larger than the sum of its proper divisors (6498057).

84474559 is a wasteful number, since it uses less digits than its factorization.

84474559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498056.

The product of its digits is 806400, while the sum is 46.

The square root of 84474559 is about 9191.0042432805. The cubic root of 84474559 is about 438.7751039064.

The spelling of 84474559 in words is "eighty-four million, four hundred seventy-four thousand, five hundred fifty-nine".