492921669 has 16 divisors (see below), whose sum is σ = 679518720. Its totient is φ = 317503680.

The previous prime is 492921643. The next prime is 492921697. The reversal of 492921669 is 966129294.

It is not a de Polignac number, because 492921669 - 2⁸ = 492921413 is a prime.

It is a super-2 number, since 2×492921669² = 485943543539491122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492928669) 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, 59047 + ... + 66875.

It is an arithmetic number, because the mean of its divisors is an integer number (42469920).

Almost surely, 2^492921669 is an apocalyptic number.

It is an amenable number.

492921669 is a deficient number, since it is larger than the sum of its proper divisors (186597051).

492921669 is a wasteful number, since it uses less digits than its factorization.

492921669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540.

The product of its digits is 419904, while the sum is 48.

The square root of 492921669 is about 22201.8393156963. The cubic root of 492921669 is about 789.9373282548.

The spelling of 492921669 in words is "four hundred ninety-two million, nine hundred twenty-one thousand, six hundred sixty-nine".