96721181 has 4 divisors (see below), whose sum is σ = 96797052. Its totient is φ = 96645312.

The previous prime is 96721139. The next prime is 96721217. The reversal of 96721181 is 18112769.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87516025 + 9205156 = 9355^2 + 3034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96721181 is a prime.

It is a super-2 number, since 2×96721181² = 18709973708069522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96721111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35990 + ... + 38583.

It is an arithmetic number, because the mean of its divisors is an integer number (24199263).

Almost surely, 2^96721181 is an apocalyptic number.

It is an amenable number.

96721181 is a deficient number, since it is larger than the sum of its proper divisors (75871).

96721181 is a wasteful number, since it uses less digits than its factorization.

96721181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75870.

The product of its digits is 6048, while the sum is 35.

The square root of 96721181 is about 9834.6927252457. The cubic root of 96721181 is about 459.0294296549.

The spelling of 96721181 in words is "ninety-six million, seven hundred twenty-one thousand, one hundred eighty-one".