747841 has 2 divisors, whose sum is σ = 747842. Its totient is φ = 747840.

The previous prime is 747839. The next prime is 747853. The reversal of 747841 is 148747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518400 + 229441 = 720^2 + 479^2 .

It is an emirp because it is prime and its reverse (148747) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 747841 - 2¹ = 747839 is a prime.

It is a super-2 number, since 2×747841² = 1118532322562, which contains 22 as substring.

Together with 747839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (747811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373920 + 373921.

It is an arithmetic number, because the mean of its divisors is an integer number (373921).

2⁷⁴⁷⁸⁴¹ is an apocalyptic number.

It is an amenable number.

747841 is a deficient number, since it is larger than the sum of its proper divisors (1).

747841 is an equidigital number, since it uses as much as digits as its factorization.

747841 is an odious number, because the sum of its binary digits is odd.

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

The square root of 747841 is about 864.7780061958. The cubic root of 747841 is about 90.7687644442.

The spelling of 747841 in words is "seven hundred forty-seven thousand, eight hundred forty-one".