743572873 has 4 divisors (see below), whose sum is σ = 744028740. Its totient is φ = 743117008.

The previous prime is 743572871. The next prime is 743572891. The reversal of 743572873 is 378275347.

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

It can be written as a sum of positive squares in 2 ways, for example, as 356152384 + 387420489 = 18872^2 + 19683^2 .

It is a cyclic number.

It is not a de Polignac number, because 743572873 - 2¹ = 743572871 is a prime.

It is a super-3 number, since 3×743572873³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743572871) 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, 225478 + ... + 228751.

It is an arithmetic number, because the mean of its divisors is an integer number (186007185).

Almost surely, 2^743572873 is an apocalyptic number.

It is an amenable number.

743572873 is a deficient number, since it is larger than the sum of its proper divisors (455867).

743572873 is a wasteful number, since it uses less digits than its factorization.

743572873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455866.

The product of its digits is 987840, while the sum is 46.

The square root of 743572873 is about 27268.5326521249. The cubic root of 743572873 is about 905.9575441383.

It can be divided in two parts, 7435 and 72873, that added together give a palindrome (80308).

The spelling of 743572873 in words is "seven hundred forty-three million, five hundred seventy-two thousand, eight hundred seventy-three".