543761 has 4 divisors (see below), whose sum is σ = 572400. Its totient is φ = 515124.

The previous prime is 543713. The next prime is 543769. The reversal of 543761 is 167345.

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: 167345 = 5 ⋅33469.

It is a cyclic number.

It is not a de Polignac number, because 543761 - 2¹⁴ = 527377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 543761.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543761.

It is not an unprimeable number, because it can be changed into a prime (543769) 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, 14291 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (143100).

2⁵⁴³⁷⁶¹ is an apocalyptic number.

It is an amenable number.

543761 is a deficient number, since it is larger than the sum of its proper divisors (28639).

543761 is a wasteful number, since it uses less digits than its factorization.

543761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28638.

The product of its digits is 2520, while the sum is 26.

The square root of 543761 is about 737.4015188484. The cubic root of 543761 is about 81.6211454395.

The spelling of 543761 in words is "five hundred forty-three thousand, seven hundred sixty-one".