875749 has 4 divisors (see below), whose sum is σ = 1000864. Its totient is φ = 750636.

The previous prime is 875741. The next prime is 875759. The reversal of 875749 is 947578.

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: 947578 = 2 ⋅473789.

It is a cyclic number.

It is not a de Polignac number, because 875749 - 2³ = 875741 is a prime.

It is a super-2 number, since 2×875749² = 1533872622002, which contains 22 as substring.

It is a Duffinian number.

875749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875741) 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, 62547 + ... + 62560.

It is an arithmetic number, because the mean of its divisors is an integer number (250216).

2⁸⁷⁵⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

875749 is a deficient number, since it is larger than the sum of its proper divisors (125115).

875749 is a wasteful number, since it uses less digits than its factorization.

875749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125114.

The product of its digits is 70560, while the sum is 40.

The square root of 875749 is about 935.8146183940. The cubic root of 875749 is about 95.6738425068.

It can be divided in two parts, 8 and 75749, that added together give a palindrome (75757).

The spelling of 875749 in words is "eight hundred seventy-five thousand, seven hundred forty-nine".