494651 has 2 divisors, whose sum is σ = 494652. Its totient is φ = 494650.

The previous prime is 494647. The next prime is 494671. The reversal of 494651 is 156494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 494651 - 2² = 494647 is a prime.

It is a super-2 number, since 2×494651² = 489359223602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (494621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247325 + 247326.

It is an arithmetic number, because the mean of its divisors is an integer number (247326).

2⁴⁹⁴⁶⁵¹ is an apocalyptic number.

494651 is a deficient number, since it is larger than the sum of its proper divisors (1).

494651 is an equidigital number, since it uses as much as digits as its factorization.

494651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 494651 is about 703.3142967408. The cubic root of 494651 is about 79.0860036513.

The spelling of 494651 in words is "four hundred ninety-four thousand, six hundred fifty-one".