492661399 has 4 divisors (see below), whose sum is σ = 494402536. Its totient is φ = 490920264.

The previous prime is 492661373. The next prime is 492661417. The reversal of 492661399 is 993166294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993166294 = 2 ⋅496583147.

It is a cyclic number.

It is not a de Polignac number, because 492661399 - 2⁷ = 492661271 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 (492661999) 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, 870144 + ... + 870709.

It is an arithmetic number, because the mean of its divisors is an integer number (123600634).

Almost surely, 2^492661399 is an apocalyptic number.

492661399 is a deficient number, since it is larger than the sum of its proper divisors (1741137).

492661399 is a wasteful number, since it uses less digits than its factorization.

492661399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741136.

The product of its digits is 629856, while the sum is 49.

The square root of 492661399 is about 22195.9770904549. The cubic root of 492661399 is about 789.7982708764.

The spelling of 492661399 in words is "four hundred ninety-two million, six hundred sixty-one thousand, three hundred ninety-nine".