545829769 has 9 divisors (see below), whose sum is σ = 556377159. Its totient is φ = 535479960.

The previous prime is 545829731. The next prime is 545829773. The reversal of 545829769 is 967928545.

The square root of 545829769 is 23363.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17749369 + 528080400 = 4213^2 + 22980^2 .

It is not a de Polignac number, because 545829769 - 2¹⁷ = 545698697 is a prime.

It is a super-2 number, since 2×545829769² = 595860273453186722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545829719) 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 8 ways as a sum of consecutive naturals, for example, 1424952 + ... + 1425334.

Almost surely, 2^545829769 is an apocalyptic number.

545829769 is the 23363-rd square number.

545829769 is the 11682-nd centered octagonal number.

It is an amenable number.

545829769 is a deficient number, since it is larger than the sum of its proper divisors (10547390).

545829769 is an frugal number, since it uses more digits than its factorization.

545829769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888 (or 444 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 55.

The cubic root of 545829769 is about 817.2452517627.

The spelling of 545829769 in words is "five hundred forty-five million, eight hundred twenty-nine thousand, seven hundred sixty-nine".