493892866 has 4 divisors (see below), whose sum is σ = 740839302. Its totient is φ = 246946432.

The previous prime is 493892807. The next prime is 493892887. The reversal of 493892866 is 668298394.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 371679841 + 122213025 = 19279^2 + 11055^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123473215 + ... + 123473218.

Almost surely, 2^493892866 is an apocalyptic number.

493892866 is a deficient number, since it is larger than the sum of its proper divisors (246946436).

493892866 is a wasteful number, since it uses less digits than its factorization.

493892866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246946435.

The product of its digits is 4478976, while the sum is 55.

The square root of 493892866 is about 22223.7005469386. The cubic root of 493892866 is about 790.4557888977.

The spelling of 493892866 in words is "four hundred ninety-three million, eight hundred ninety-two thousand, eight hundred sixty-six".