975749 has 4 divisors (see below), whose sum is σ = 1033164. Its totient is φ = 918336.

The previous prime is 975743. The next prime is 975797. The reversal of 975749 is 947579.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 351649 + 624100 = 593^2 + 790^2 .

It is a cyclic number.

It is not a de Polignac number, because 975749 - 2⁸ = 975493 is a prime.

It is a super-2 number, since 2×975749² = 1904172222002, 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 (975743) 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, 28682 + ... + 28715.

It is an arithmetic number, because the mean of its divisors is an integer number (258291).

2⁹⁷⁵⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

975749 is a deficient number, since it is larger than the sum of its proper divisors (57415).

975749 is a wasteful number, since it uses less digits than its factorization.

975749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57414.

The product of its digits is 79380, while the sum is 41.

The square root of 975749 is about 987.8000809881. The cubic root of 975749 is about 99.1850092787.

The spelling of 975749 in words is "nine hundred seventy-five thousand, seven hundred forty-nine".