549769 has 16 divisors (see below), whose sum is σ = 653184. Its totient is φ = 457600.

The previous prime is 549767. The next prime is 549817. The reversal of 549769 is 967945.

It is not a de Polignac number, because 549769 - 2¹ = 549767 is a prime.

It is a super-2 number, since 2×549769² = 604491906722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10347 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁵⁴⁹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

549769 is a deficient number, since it is larger than the sum of its proper divisors (103415).

549769 is a wasteful number, since it uses less digits than its factorization.

549769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its digits is 68040, while the sum is 40.

The square root of 549769 is about 741.4640921852. The cubic root of 549769 is about 81.9206549560.

The spelling of 549769 in words is "five hundred forty-nine thousand, seven hundred sixty-nine".