743476321 has 16 divisors (see below), whose sum is σ = 874368000. Its totient is φ = 618923088.

The previous prime is 743476319. The next prime is 743476343. The reversal of 743476321 is 123674347.

It is not a de Polignac number, because 743476321 - 2¹ = 743476319 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743476361) 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 15 ways as a sum of consecutive naturals, for example, 46980 + ... + 60778.

It is an arithmetic number, because the mean of its divisors is an integer number (54648000).

Almost surely, 2^743476321 is an apocalyptic number.

It is an amenable number.

743476321 is a deficient number, since it is larger than the sum of its proper divisors (130891679).

743476321 is a wasteful number, since it uses less digits than its factorization.

743476321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14028.

The product of its digits is 84672, while the sum is 37.

The square root of 743476321 is about 27266.7622023591. The cubic root of 743476321 is about 905.9183299593.

The spelling of 743476321 in words is "seven hundred forty-three million, four hundred seventy-six thousand, three hundred twenty-one".