96421521 has 16 divisors (see below), whose sum is σ = 147276800. Its totient is φ = 54967248.

The previous prime is 96421513. The next prime is 96421547. The reversal of 96421521 is 12512469.

It is not a de Polignac number, because 96421521 - 2³ = 96421513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (96421511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3990 + ... + 14448.

It is an arithmetic number, because the mean of its divisors is an integer number (9204800).

Almost surely, 2^96421521 is an apocalyptic number.

It is an amenable number.

96421521 is a deficient number, since it is larger than the sum of its proper divisors (50855279).

96421521 is a wasteful number, since it uses less digits than its factorization.

96421521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10908.

The product of its digits is 4320, while the sum is 30.

The square root of 96421521 is about 9819.4460638062. The cubic root of 96421521 is about 458.5548867228.

The spelling of 96421521 in words is "ninety-six million, four hundred twenty-one thousand, five hundred twenty-one".