949358869 has 2 divisors, whose sum is σ = 949358870. Its totient is φ = 949358868.

The previous prime is 949358827. The next prime is 949358873. The reversal of 949358869 is 968853949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769396644 + 179962225 = 27738^2 + 13415^2 .

It is a cyclic number.

It is not a de Polignac number, because 949358869 - 2¹⁹ = 948834581 is a prime.

It is a super-2 number, since 2×949358869² = 1802564524297918322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949359869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474679434 + 474679435.

It is an arithmetic number, because the mean of its divisors is an integer number (474679435).

Almost surely, 2^949358869 is an apocalyptic number.

It is an amenable number.

949358869 is a deficient number, since it is larger than the sum of its proper divisors (1).

949358869 is an equidigital number, since it uses as much as digits as its factorization.

949358869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 61.

The square root of 949358869 is about 30811.6677412957. The cubic root of 949358869 is about 982.8263780673.

The spelling of 949358869 in words is "nine hundred forty-nine million, three hundred fifty-eight thousand, eight hundred sixty-nine".