954689993 has 2 divisors, whose sum is σ = 954689994. Its totient is φ = 954689992.

The previous prime is 954689977. The next prime is 954690001. The reversal of 954689993 is 399986459.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 549996304 + 404693689 = 23452^2 + 20117^2 .

It is a cyclic number.

It is not a de Polignac number, because 954689993 - 2⁴ = 954689977 is a prime.

It is a super-2 number, since 2×954689993² = 1822865965468680098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (954689933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 477344996 + 477344997.

It is an arithmetic number, because the mean of its divisors is an integer number (477344997).

Almost surely, 2^954689993 is an apocalyptic number.

It is an amenable number.

954689993 is a deficient number, since it is larger than the sum of its proper divisors (1).

954689993 is an equidigital number, since it uses as much as digits as its factorization.

954689993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18895680, while the sum is 62.

The square root of 954689993 is about 30898.0580781382. The cubic root of 954689993 is about 984.6626321073.

The spelling of 954689993 in words is "nine hundred fifty-four million, six hundred eighty-nine thousand, nine hundred ninety-three".