494673621 has 8 divisors (see below), whose sum is σ = 710300640. Its totient is φ = 304414512.

The previous prime is 494673587. The next prime is 494673631. The reversal of 494673621 is 126376494.

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

It is not a de Polignac number, because 494673621 - 2¹⁰ = 494672597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494673631) 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, 6341931 + ... + 6342008.

It is an arithmetic number, because the mean of its divisors is an integer number (88787580).

Almost surely, 2^494673621 is an apocalyptic number.

It is an amenable number.

494673621 is a deficient number, since it is larger than the sum of its proper divisors (215627019).

494673621 is a wasteful number, since it uses less digits than its factorization.

494673621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683955.

The product of its digits is 217728, while the sum is 42.

The square root of 494673621 is about 22241.2594292679. The cubic root of 494673621 is about 790.8720919972.

The spelling of 494673621 in words is "four hundred ninety-four million, six hundred seventy-three thousand, six hundred twenty-one".