872741 has 4 divisors (see below), whose sum is σ = 881484. Its totient is φ = 864000.

The previous prime is 872737. The next prime is 872747. The reversal of 872741 is 147278.

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 422500 + 450241 = 650^2 + 671^2 .

It is a cyclic number.

It is not a de Polignac number, because 872741 - 2² = 872737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872747) 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, 4220 + ... + 4421.

It is an arithmetic number, because the mean of its divisors is an integer number (220371).

2⁸⁷²⁷⁴¹ is an apocalyptic number.

It is an amenable number.

872741 is a deficient number, since it is larger than the sum of its proper divisors (8743).

872741 is a wasteful number, since it uses less digits than its factorization.

872741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8742.

The product of its digits is 3136, while the sum is 29.

The square root of 872741 is about 934.2060800487. The cubic root of 872741 is about 95.5641775066.

The spelling of 872741 in words is "eight hundred seventy-two thousand, seven hundred forty-one".