749769 has 4 divisors (see below), whose sum is σ = 999696. Its totient is φ = 499844.

The previous prime is 749761. The next prime is 749773. The reversal of 749769 is 967947.

749769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 967947 = 3 ⋅322649.

It is a cyclic number.

It is not a de Polignac number, because 749769 - 2³ = 749761 is a prime.

It is a super-2 number, since 2×749769² = 1124307106722, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 749769.

It is not an unprimeable number, because it can be changed into a prime (749761) 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, 124959 + ... + 124964.

It is an arithmetic number, because the mean of its divisors is an integer number (249924).

2⁷⁴⁹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

749769 is a deficient number, since it is larger than the sum of its proper divisors (249927).

749769 is a wasteful number, since it uses less digits than its factorization.

749769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249926.

The product of its digits is 95256, while the sum is 42.

The square root of 749769 is about 865.8920256013. The cubic root of 749769 is about 90.8467007981.

The spelling of 749769 in words is "seven hundred forty-nine thousand, seven hundred sixty-nine".