742593 has 4 divisors (see below), whose sum is σ = 990128. Its totient is φ = 495060.

The previous prime is 742591. The next prime is 742607. The reversal of 742593 is 395247.

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, and also an emirpimes, since its reverse is a distinct semiprime: 395247 = 3 ⋅131749.

It is not a de Polignac number, because 742593 - 2¹ = 742591 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742593.

It is not an unprimeable number, because it can be changed into a prime (742591) 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, 123763 + ... + 123768.

It is an arithmetic number, because the mean of its divisors is an integer number (247532).

2⁷⁴²⁵⁹³ is an apocalyptic number.

It is an amenable number.

742593 is a deficient number, since it is larger than the sum of its proper divisors (247535).

742593 is a wasteful number, since it uses less digits than its factorization.

742593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247534.

The product of its digits is 7560, while the sum is 30.

The square root of 742593 is about 861.7383593644. The cubic root of 742593 is about 90.5559415231. Note that the first 3 decimals are identical.

The spelling of 742593 in words is "seven hundred forty-two thousand, five hundred ninety-three".