95211821 has 2 divisors, whose sum is σ = 95211822. Its totient is φ = 95211820.

The previous prime is 95211811. The next prime is 95211829. The reversal of 95211821 is 12811259.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93334921 + 1876900 = 9661^2 + 1370^2 .

It is an emirp because it is prime and its reverse (12811259) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 95211821 - 2¹⁴ = 95195437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (95211829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47605910 + 47605911.

It is an arithmetic number, because the mean of its divisors is an integer number (47605911).

Almost surely, 2^95211821 is an apocalyptic number.

It is an amenable number.

95211821 is a deficient number, since it is larger than the sum of its proper divisors (1).

95211821 is an equidigital number, since it uses as much as digits as its factorization.

95211821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 29.

The square root of 95211821 is about 9757.6544825076. The cubic root of 95211821 is about 456.6291411319.

The spelling of 95211821 in words is "ninety-five million, two hundred eleven thousand, eight hundred twenty-one".