84499521 has 8 divisors (see below), whose sum is σ = 116300544. Its totient is φ = 54515760.

The previous prime is 84499501. The next prime is 84499523. The reversal of 84499521 is 12599448.

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

It is not a de Polignac number, because 84499521 - 2⁵ = 84499489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84499523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454206 + ... + 454391.

It is an arithmetic number, because the mean of its divisors is an integer number (14537568).

Almost surely, 2^84499521 is an apocalyptic number.

It is an amenable number.

84499521 is a deficient number, since it is larger than the sum of its proper divisors (31801023).

84499521 is a wasteful number, since it uses less digits than its factorization.

84499521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908631.

The product of its digits is 103680, while the sum is 42.

The square root of 84499521 is about 9192.3621012229. The cubic root of 84499521 is about 438.8183185958.

The spelling of 84499521 in words is "eighty-four million, four hundred ninety-nine thousand, five hundred twenty-one".