749559 has 4 divisors (see below), whose sum is σ = 999416. Its totient is φ = 499704.

The previous prime is 749557. The next prime is 749587. The reversal of 749559 is 955947.

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

It is not a de Polignac number, because 749559 - 2¹ = 749557 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749557) 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, 124924 + ... + 124929.

It is an arithmetic number, because the mean of its divisors is an integer number (249854).

2⁷⁴⁹⁵⁵⁹ is an apocalyptic number.

749559 is a deficient number, since it is larger than the sum of its proper divisors (249857).

749559 is a wasteful number, since it uses less digits than its factorization.

749559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249856.

The product of its digits is 56700, while the sum is 39.

The square root of 749559 is about 865.7707548768. The cubic root of 749559 is about 90.8382183683.

The spelling of 749559 in words is "seven hundred forty-nine thousand, five hundred fifty-nine".