492781973 has 16 divisors (see below), whose sum is σ = 511145856. Its totient is φ = 474863040.

The previous prime is 492781963. The next prime is 492781997. The reversal of 492781973 is 379187294.

It is a de Polignac number, because none of the positive numbers 2^k-492781973 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 (492781963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671915 + ... + 672647.

It is an arithmetic number, because the mean of its divisors is an integer number (31946616).

Almost surely, 2^492781973 is an apocalyptic number.

It is an amenable number.

492781973 is a deficient number, since it is larger than the sum of its proper divisors (18363883).

492781973 is a wasteful number, since it uses less digits than its factorization.

492781973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004.

The product of its digits is 762048, while the sum is 50.

The square root of 492781973 is about 22198.6930471143. The cubic root of 492781973 is about 789.8626973900.

The spelling of 492781973 in words is "four hundred ninety-two million, seven hundred eighty-one thousand, nine hundred seventy-three".