493209331 has 4 divisors (see below), whose sum is σ = 497818872. Its totient is φ = 488599792.

The previous prime is 493209329. The next prime is 493209341. The reversal of 493209331 is 133902394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133902394 = 2 ⋅66951197.

It is a cyclic number.

It is not a de Polignac number, because 493209331 - 2¹ = 493209329 is a prime.

It is a super-2 number, since 2×493209331² = 486510888370935122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493209341) 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, 2304610 + ... + 2304823.

It is an arithmetic number, because the mean of its divisors is an integer number (124454718).

Almost surely, 2^493209331 is an apocalyptic number.

493209331 is a deficient number, since it is larger than the sum of its proper divisors (4609541).

493209331 is a wasteful number, since it uses less digits than its factorization.

493209331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609540.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 493209331 is about 22208.3167079362. The cubic root of 493209331 is about 790.0909637285.

The spelling of 493209331 in words is "four hundred ninety-three million, two hundred nine thousand, three hundred thirty-one".