898924521 has 16 divisors (see below), whose sum is σ = 1384440768. Its totient is φ = 512755200.

The previous prime is 898924519. The next prime is 898924529. The reversal of 898924521 is 125429898.

It is not a de Polignac number, because 898924521 - 2¹ = 898924519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (898924529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800620 + ... + 801741.

It is an arithmetic number, because the mean of its divisors is an integer number (86527548).

Almost surely, 2^898924521 is an apocalyptic number.

It is an amenable number.

898924521 is a deficient number, since it is larger than the sum of its proper divisors (485516247).

898924521 is a wasteful number, since it uses less digits than its factorization.

898924521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602392.

The product of its digits is 414720, while the sum is 48.

The square root of 898924521 is about 29982.0699919135. The cubic root of 898924521 is about 965.1046522207.

The spelling of 898924521 in words is "eight hundred ninety-eight million, nine hundred twenty-four thousand, five hundred twenty-one".