9400220077 has 2 divisors, whose sum is σ = 9400220078. Its totient is φ = 9400220076.

The previous prime is 9400219909. The next prime is 9400220099. The reversal of 9400220077 is 7700220049.

It is a happy number.

9400220077 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4920461316 + 4479758761 = 70146^2 + 66931^2 .

It is an emirp because it is prime and its reverse (7700220049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9400220077 - 2¹¹ = 9400218029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9400227077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4700110038 + 4700110039.

It is an arithmetic number, because the mean of its divisors is an integer number (4700110039).

Almost surely, 2^9400220077 is an apocalyptic number.

It is an amenable number.

9400220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

9400220077 is an equidigital number, since it uses as much as digits as its factorization.

9400220077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 9400220077 is about 96954.7321021517. The cubic root of 9400220077 is about 2110.4707646613.

The spelling of 9400220077 in words is "nine billion, four hundred million, two hundred twenty thousand, seventy-seven".