742803 has 4 divisors (see below), whose sum is σ = 990408. Its totient is φ = 495200.

The previous prime is 742801. The next prime is 742817. The reversal of 742803 is 308247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742803 - 2¹ = 742801 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (742801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123798 + ... + 123803.

It is an arithmetic number, because the mean of its divisors is an integer number (247602).

2⁷⁴²⁸⁰³ is an apocalyptic number.

742803 is a deficient number, since it is larger than the sum of its proper divisors (247605).

742803 is a wasteful number, since it uses less digits than its factorization.

742803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247604.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 742803 is about 861.8601974798. The cubic root of 742803 is about 90.5644769098.

The spelling of 742803 in words is "seven hundred forty-two thousand, eight hundred three".