493574661 has 16 divisors (see below), whose sum is σ = 738325120. Its totient is φ = 325853280.

The previous prime is 493574657. The next prime is 493574663. The reversal of 493574661 is 166475394.

It is not a de Polignac number, because 493574661 - 2² = 493574657 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 (493574663) 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, 85960 + ... + 91521.

It is an arithmetic number, because the mean of its divisors is an integer number (46145320).

Almost surely, 2^493574661 is an apocalyptic number.

It is an amenable number.

493574661 is a deficient number, since it is larger than the sum of its proper divisors (244750459).

493574661 is a wasteful number, since it uses less digits than its factorization.

493574661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177593 (or 177587 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 493574661 is about 22216.5402572048. The cubic root of 493574661 is about 790.2859943000.

The spelling of 493574661 in words is "four hundred ninety-three million, five hundred seventy-four thousand, six hundred sixty-one".