787441 has 4 divisors (see below), whose sum is σ = 793584. Its totient is φ = 781300.

The previous prime is 787439. The next prime is 787447. The reversal of 787441 is 144787.

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: 144787 = 67 ⋅2161.

It is a cyclic number.

It is not a de Polignac number, because 787441 - 2¹ = 787439 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (787447) 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, 2875 + ... + 3136.

It is an arithmetic number, because the mean of its divisors is an integer number (198396).

2⁷⁸⁷⁴⁴¹ is an apocalyptic number.

It is an amenable number.

787441 is a deficient number, since it is larger than the sum of its proper divisors (6143).

787441 is a wasteful number, since it uses less digits than its factorization.

787441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142.

The product of its digits is 6272, while the sum is 31.

The square root of 787441 is about 887.3787241083. The cubic root of 787441 is about 92.3434312644.

The spelling of 787441 in words is "seven hundred eighty-seven thousand, four hundred forty-one".