743074513 has 4 divisors (see below), whose sum is σ = 746263908. Its totient is φ = 739885120.

The previous prime is 743074499. The next prime is 743074537. The reversal of 743074513 is 315470347.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315470347 = 107 ⋅2948321.

It can be written as a sum of positive squares in 2 ways, for example, as 409171984 + 333902529 = 20228^2 + 18273^2 .

It is a cyclic number.

It is not a de Polignac number, because 743074513 - 2⁵ = 743074481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743084513) 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, 1594348 + ... + 1594813.

It is an arithmetic number, because the mean of its divisors is an integer number (186565977).

Almost surely, 2^743074513 is an apocalyptic number.

It is an amenable number.

743074513 is a deficient number, since it is larger than the sum of its proper divisors (3189395).

743074513 is a wasteful number, since it uses less digits than its factorization.

743074513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189394.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 743074513 is about 27259.3931150347. The cubic root of 743074513 is about 905.7551008976.

The spelling of 743074513 in words is "seven hundred forty-three million, seventy-four thousand, five hundred thirteen".