745393 has 4 divisors (see below), whose sum is σ = 813168. Its totient is φ = 677620.

The previous prime is 745391. The next prime is 745397. The reversal of 745393 is 393547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 745393 - 2¹ = 745391 is a prime.

It is a super-2 number, since 2×745393² = 1111221448898, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33871 + ... + 33892.

It is an arithmetic number, because the mean of its divisors is an integer number (203292).

2⁷⁴⁵³⁹³ is an apocalyptic number.

It is an amenable number.

745393 is a deficient number, since it is larger than the sum of its proper divisors (67775).

745393 is a wasteful number, since it uses less digits than its factorization.

745393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67774.

The product of its digits is 11340, while the sum is 31.

The square root of 745393 is about 863.3614538535. The cubic root of 745393 is about 90.6696146557.

The spelling of 745393 in words is "seven hundred forty-five thousand, three hundred ninety-three".