749719 has 4 divisors (see below), whose sum is σ = 751680. Its totient is φ = 747760.

The previous prime is 749711. The next prime is 749729. The reversal of 749719 is 917947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917947 = 19 ⋅48313.

It is a cyclic number.

It is not a de Polignac number, because 749719 - 2³ = 749711 is a prime.

It is a super-2 number, since 2×749719² = 1124157157922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (187920).

2⁷⁴⁹⁷¹⁹ is an apocalyptic number.

749719 is a deficient number, since it is larger than the sum of its proper divisors (1961).

749719 is a wasteful number, since it uses less digits than its factorization.

749719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960.

The product of its digits is 15876, while the sum is 37.

The square root of 749719 is about 865.8631531599. The cubic root of 749719 is about 90.8446813156.

The spelling of 749719 in words is "seven hundred forty-nine thousand, seven hundred nineteen".