96642821 has 6 divisors (see below), whose sum is σ = 106227366. Its totient is φ = 87857000.

The previous prime is 96642751. The next prime is 96642829. The reversal of 96642821 is 12824669.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 39866596 = 7535^2 + 6314^2 .

It is not a de Polignac number, because 96642821 - 2¹⁴ = 96626437 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 (96642829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399230 + ... + 399471.

It is an arithmetic number, because the mean of its divisors is an integer number (17704561).

Almost surely, 2^96642821 is an apocalyptic number.

It is an amenable number.

96642821 is a deficient number, since it is larger than the sum of its proper divisors (9584545).

96642821 is a wasteful number, since it uses less digits than its factorization.

96642821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798723 (or 798712 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 96642821 is about 9830.7080619862. The cubic root of 96642821 is about 458.9054331533.

The spelling of 96642821 in words is "ninety-six million, six hundred forty-two thousand, eight hundred twenty-one".