771401 has 2 divisors, whose sum is σ = 771402. Its totient is φ = 771400.

The previous prime is 771389. The next prime is 771403. The reversal of 771401 is 104177.

771401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 5776 = 875^2 + 76^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-771401 is a prime.

Together with 771403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (771403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385700 + 385701.

It is an arithmetic number, because the mean of its divisors is an integer number (385701).

2⁷⁷¹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

771401 is a deficient number, since it is larger than the sum of its proper divisors (1).

771401 is an equidigital number, since it uses as much as digits as its factorization.

771401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 771401 is about 878.2943697873. The cubic root of 771401 is about 91.7121199741.

Adding to 771401 its reverse (104177), we get a palindrome (875578).

The spelling of 771401 in words is "seven hundred seventy-one thousand, four hundred one", and thus it is an iban number.