729049373 has 4 divisors (see below), whose sum is σ = 785130108. Its totient is φ = 672968640.

The previous prime is 729049337. The next prime is 729049379. The reversal of 729049373 is 373940927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 373940927 = 5417 ⋅69031.

It can be written as a sum of positive squares in 2 ways, for example, as 471671524 + 257377849 = 21718^2 + 16043^2 .

It is a cyclic number.

It is not a de Polignac number, because 729049373 - 2¹² = 729045277 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 (729049379) 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, 28040348 + ... + 28040373.

It is an arithmetic number, because the mean of its divisors is an integer number (196282527).

Almost surely, 2^729049373 is an apocalyptic number.

It is an amenable number.

729049373 is a deficient number, since it is larger than the sum of its proper divisors (56080735).

729049373 is a wasteful number, since it uses less digits than its factorization.

729049373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56080734.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 729049373 is about 27000.9142993344. The cubic root of 729049373 is about 900.0203176483.

The spelling of 729049373 in words is "seven hundred twenty-nine million, forty-nine thousand, three hundred seventy-three".