494512973 has 4 divisors (see below), whose sum is σ = 498889308. Its totient is φ = 490136640.

The previous prime is 494512969. The next prime is 494512979. The reversal of 494512973 is 379215494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61748164 + 432764809 = 7858^2 + 20803^2 .

It is a cyclic number.

It is not a de Polignac number, because 494512973 - 2² = 494512969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494512979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187998 + ... + 2188223.

It is an arithmetic number, because the mean of its divisors is an integer number (124722327).

Almost surely, 2^494512973 is an apocalyptic number.

It is an amenable number.

494512973 is a deficient number, since it is larger than the sum of its proper divisors (4376335).

494512973 is a wasteful number, since it uses less digits than its factorization.

494512973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376334.

The product of its digits is 272160, while the sum is 44.

The square root of 494512973 is about 22237.6476498752. The cubic root of 494512973 is about 790.7864693627.

The spelling of 494512973 in words is "four hundred ninety-four million, five hundred twelve thousand, nine hundred seventy-three".