494325721 has 8 divisors (see below), whose sum is σ = 522139904. Its totient is φ = 467253360.

The previous prime is 494325703. The next prime is 494325757. The reversal of 494325721 is 127523494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494325721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494325781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184086 + ... + 186751.

It is an arithmetic number, because the mean of its divisors is an integer number (65267488).

Almost surely, 2^494325721 is an apocalyptic number.

It is an amenable number.

494325721 is a deficient number, since it is larger than the sum of its proper divisors (27814183).

494325721 is a wasteful number, since it uses less digits than its factorization.

494325721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370911.

The product of its digits is 60480, while the sum is 37.

The square root of 494325721 is about 22233.4370037563. The cubic root of 494325721 is about 790.6866438440.

The spelling of 494325721 in words is "four hundred ninety-four million, three hundred twenty-five thousand, seven hundred twenty-one".