493074751 has 4 divisors (see below), whose sum is σ = 531003592. Its totient is φ = 455145912.

The previous prime is 493074737. The next prime is 493074763. The reversal of 493074751 is 157470394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157470394 = 2 ⋅78735197.

It is a de Polignac number, because none of the positive numbers 2^k-493074751 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 (493074721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18964401 + ... + 18964426.

It is an arithmetic number, because the mean of its divisors is an integer number (132750898).

Almost surely, 2^493074751 is an apocalyptic number.

493074751 is a deficient number, since it is larger than the sum of its proper divisors (37928841).

493074751 is a wasteful number, since it uses less digits than its factorization.

493074751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37928840.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 493074751 is about 22205.2865552327. The cubic root of 493074751 is about 790.0190942349.

The spelling of 493074751 in words is "four hundred ninety-three million, seventy-four thousand, seven hundred fifty-one".