742719 has 8 divisors (see below), whose sum is σ = 1024560. Its totient is φ = 478016.

The previous prime is 742717. The next prime is 742723. The reversal of 742719 is 917247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742719 - 2¹ = 742717 is a prime.

It is a super-2 number, since 2×742719² = 1103263025922, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 742719.

It is not an unprimeable number, because it can be changed into a prime (742711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4182 + ... + 4355.

It is an arithmetic number, because the mean of its divisors is an integer number (128070).

2⁷⁴²⁷¹⁹ is an apocalyptic number.

742719 is a deficient number, since it is larger than the sum of its proper divisors (281841).

742719 is a wasteful number, since it uses less digits than its factorization.

742719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569.

The product of its digits is 3528, while the sum is 30.

The square root of 742719 is about 861.8114643006. The cubic root of 742719 is about 90.5610629482.

The spelling of 742719 in words is "seven hundred forty-two thousand, seven hundred nineteen".