740723 has 4 divisors (see below), whose sum is σ = 752928. Its totient is φ = 728520.

The previous prime is 740717. The next prime is 740737. The reversal of 740723 is 327047.

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

It is a cyclic number.

It is not a de Polignac number, because 740723 - 2⁶ = 740659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740713) 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, 6011 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (188232).

2⁷⁴⁰⁷²³ is an apocalyptic number.

740723 is a deficient number, since it is larger than the sum of its proper divisors (12205).

740723 is a wasteful number, since it uses less digits than its factorization.

740723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12204.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 740723 is about 860.6526593231. The cubic root of 740723 is about 90.4798648774.

The spelling of 740723 in words is "seven hundred forty thousand, seven hundred twenty-three", and thus it is an iban number.