732881 has 4 divisors (see below), whose sum is σ = 736164. Its totient is φ = 729600.

The previous prime is 732877. The next prime is 732889. The reversal of 732881 is 188237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 188237 = 7 ⋅26891.

It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 78400 = 809^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 732881 - 2² = 732877 is a prime.

It is a super-2 number, since 2×732881² = 1074229120322, 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 (732889) 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, 1280 + ... + 1761.

It is an arithmetic number, because the mean of its divisors is an integer number (184041).

2⁷³²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

732881 is a deficient number, since it is larger than the sum of its proper divisors (3283).

732881 is a wasteful number, since it uses less digits than its factorization.

732881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282.

The product of its digits is 2688, while the sum is 29.

The square root of 732881 is about 856.0846920720. The cubic root of 732881 is about 90.1594293483.

Subtracting from 732881 its reverse (188237), we obtain a square (544644 = 738²).

The spelling of 732881 in words is "seven hundred thirty-two thousand, eight hundred eighty-one".