995389961 has 2 divisors, whose sum is σ = 995389962. Its totient is φ = 995389960.

The previous prime is 995389951. The next prime is 995389987. The reversal of 995389961 is 169983599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 995023936 + 366025 = 31544^2 + 605^2 .

It is an emirp because it is prime and its reverse (169983599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 995389961 - 2¹⁰ = 995388937 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 995389961.

It is not a weakly prime, because it can be changed into another prime (995389951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497694980 + 497694981.

It is an arithmetic number, because the mean of its divisors is an integer number (497694981).

Almost surely, 2^995389961 is an apocalyptic number.

It is an amenable number.

995389961 is a deficient number, since it is larger than the sum of its proper divisors (1).

995389961 is an equidigital number, since it uses as much as digits as its factorization.

995389961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 59.

The square root of 995389961 is about 31549.8012830509. The cubic root of 995389961 is about 998.4609528825.

The spelling of 995389961 in words is "nine hundred ninety-five million, three hundred eighty-nine thousand, nine hundred sixty-one".