742824993 has 4 divisors (see below), whose sum is σ = 990433328. Its totient is φ = 495216660.

The previous prime is 742824977. The next prime is 742825009. The reversal of 742824993 is 399428247.

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 an interprime number because it is at equal distance from previous prime (742824977) and next prime (742825009).

It is not a de Polignac number, because 742824993 - 2⁴ = 742824977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (742824493) 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, 123804163 + ... + 123804168.

It is an arithmetic number, because the mean of its divisors is an integer number (247608332).

Almost surely, 2^742824993 is an apocalyptic number.

It is an amenable number.

742824993 is a deficient number, since it is larger than the sum of its proper divisors (247608335).

742824993 is a wasteful number, since it uses less digits than its factorization.

742824993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247608334.

The product of its digits is 870912, while the sum is 48.

The square root of 742824993 is about 27254.8159597529. The cubic root of 742824993 is about 905.6537071564.

The spelling of 742824993 in words is "seven hundred forty-two million, eight hundred twenty-four thousand, nine hundred ninety-three".