743278375 has 16 divisors (see below), whose sum is σ = 1060128576. Its totient is φ = 509676000.

The previous prime is 743278357. The next prime is 743278379. The reversal of 743278375 is 573872347.

743278375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 743278375 - 2⁵ = 743278343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743278379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423856 + ... + 425605.

It is an arithmetic number, because the mean of its divisors is an integer number (66258036).

Almost surely, 2^743278375 is an apocalyptic number.

743278375 is a deficient number, since it is larger than the sum of its proper divisors (316850201).

743278375 is an equidigital number, since it uses as much as digits as its factorization.

743278375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849483 (or 849473 counting only the distinct ones).

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

The square root of 743278375 is about 27263.1321568157. The cubic root of 743278375 is about 905.8379244277.

The spelling of 743278375 in words is "seven hundred forty-three million, two hundred seventy-eight thousand, three hundred seventy-five".