994289953 has 2 divisors, whose sum is σ = 994289954. Its totient is φ = 994289952.

The previous prime is 994289941. The next prime is 994289957. The reversal of 994289953 is 359982499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 594969664 + 399320289 = 24392^2 + 19983^2 .

It is a cyclic number.

It is not a de Polignac number, because 994289953 - 2⁹ = 994289441 is a prime.

It is a super-2 number, since 2×994289953² = 1977225021273484418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (994289957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497144976 + 497144977.

It is an arithmetic number, because the mean of its divisors is an integer number (497144977).

Almost surely, 2^994289953 is an apocalyptic number.

It is an amenable number.

994289953 is a deficient number, since it is larger than the sum of its proper divisors (1).

994289953 is an equidigital number, since it uses as much as digits as its factorization.

994289953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 58.

The square root of 994289953 is about 31532.3635809306. The cubic root of 994289953 is about 998.0930167264.

The spelling of 994289953 in words is "nine hundred ninety-four million, two hundred eighty-nine thousand, nine hundred fifty-three".