949409953 has 2 divisors, whose sum is σ = 949409954. Its totient is φ = 949409952.

The previous prime is 949409927. The next prime is 949409957. The reversal of 949409953 is 359904949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 923430544 + 25979409 = 30388^2 + 5097^2 .

It is an emirp because it is prime and its reverse (359904949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 949409953 - 2⁵ = 949409921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 949409953.

It is not a weakly prime, because it can be changed into another prime (949409957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474704976 + 474704977.

It is an arithmetic number, because the mean of its divisors is an integer number (474704977).

Almost surely, 2^949409953 is an apocalyptic number.

It is an amenable number.

949409953 is a deficient number, since it is larger than the sum of its proper divisors (1).

949409953 is an equidigital number, since it uses as much as digits as its factorization.

949409953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 949409953 is about 30812.4967018254. The cubic root of 949409953 is about 982.8440060349.

The spelling of 949409953 in words is "nine hundred forty-nine million, four hundred nine thousand, nine hundred fifty-three".