740729 has 4 divisors (see below), whose sum is σ = 808080. Its totient is φ = 673380.

The previous prime is 740717. The next prime is 740737. The reversal of 740729 is 927047.

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 a cyclic number.

It is not a de Polignac number, because 740729 - 2⁴ = 740713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740749) 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, 33659 + ... + 33680.

It is an arithmetic number, because the mean of its divisors is an integer number (202020).

2⁷⁴⁰⁷²⁹ is an apocalyptic number.

It is an amenable number.

740729 is a deficient number, since it is larger than the sum of its proper divisors (67351).

740729 is a wasteful number, since it uses less digits than its factorization.

740729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67350.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 740729 is about 860.6561450428. The cubic root of 740729 is about 90.4801091782.

The spelling of 740729 in words is "seven hundred forty thousand, seven hundred twenty-nine".