727742 has 4 divisors (see below), whose sum is σ = 1091616. Its totient is φ = 363870.

The previous prime is 727733. The next prime is 727747. The reversal of 727742 is 247727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247727 = 191 ⋅1297.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (727747) by changing a digit.

727742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181934 + ... + 181937.

It is an arithmetic number, because the mean of its divisors is an integer number (272904).

2⁷²⁷⁷⁴² is an apocalyptic number.

727742 is a deficient number, since it is larger than the sum of its proper divisors (363874).

727742 is a wasteful number, since it uses less digits than its factorization.

727742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363873.

The product of its digits is 5488, while the sum is 29.

The square root of 727742 is about 853.0779565784. The cubic root of 727742 is about 89.9482006454.

The spelling of 727742 in words is "seven hundred twenty-seven thousand, seven hundred forty-two", and thus it is an iban number.