96405721 has 2 divisors, whose sum is σ = 96405722. Its totient is φ = 96405720.

The previous prime is 96405707. The next prime is 96405731. The reversal of 96405721 is 12750469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92852496 + 3553225 = 9636^2 + 1885^2 .

It is an emirp because it is prime and its reverse (12750469) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96405721 is a prime.

It is not a weakly prime, because it can be changed into another prime (96405731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48202860 + 48202861.

It is an arithmetic number, because the mean of its divisors is an integer number (48202861).

Almost surely, 2^96405721 is an apocalyptic number.

It is an amenable number.

96405721 is a deficient number, since it is larger than the sum of its proper divisors (1).

96405721 is an equidigital number, since it uses as much as digits as its factorization.

96405721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 96405721 is about 9818.6415048111. The cubic root of 96405721 is about 458.5298385008.

The spelling of 96405721 in words is "ninety-six million, four hundred five thousand, seven hundred twenty-one".