494521933 has 2 divisors, whose sum is σ = 494521934. Its totient is φ = 494521932.

The previous prime is 494521879. The next prime is 494521981. The reversal of 494521933 is 339125494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356529924 + 137992009 = 18882^2 + 11747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494521933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494521133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247260966 + 247260967.

It is an arithmetic number, because the mean of its divisors is an integer number (247260967).

Almost surely, 2^494521933 is an apocalyptic number.

It is an amenable number.

494521933 is a deficient number, since it is larger than the sum of its proper divisors (1).

494521933 is an equidigital number, since it uses as much as digits as its factorization.

494521933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 494521933 is about 22237.8491091202. The cubic root of 494521933 is about 790.7912453776.

The spelling of 494521933 in words is "four hundred ninety-four million, five hundred twenty-one thousand, nine hundred thirty-three".