494309997 has 12 divisors (see below), whose sum is σ = 745047264. Its totient is φ = 315212040.

The previous prime is 494309971. The next prime is 494309999. The reversal of 494309997 is 799903494.

It is not a de Polignac number, because 494309997 - 2⁷ = 494309869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494309999) 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 in 11 ways as a sum of consecutive naturals, for example, 1193779 + ... + 1194192.

It is an arithmetic number, because the mean of its divisors is an integer number (62087272).

Almost surely, 2^494309997 is an apocalyptic number.

It is an amenable number.

494309997 is a deficient number, since it is larger than the sum of its proper divisors (250737267).

494309997 is a wasteful number, since it uses less digits than its factorization.

494309997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388000 (or 2387997 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 494309997 is about 22233.0833893997. The cubic root of 494309997 is about 790.6782601083.

The spelling of 494309997 in words is "four hundred ninety-four million, three hundred nine thousand, nine hundred ninety-seven".