771013 has 2 divisors, whose sum is σ = 771014. Its totient is φ = 771012.

The previous prime is 771011. The next prime is 771019. The reversal of 771013 is 310177.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 744769 + 26244 = 863^2 + 162^2 .

It is a cyclic number.

It is not a de Polignac number, because 771013 - 2¹ = 771011 is a prime.

It is a super-2 number, since 2×771013² = 1188922092338, which contains 22 as substring.

Together with 771011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (771011) 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 as a sum of consecutive naturals, namely, 385506 + 385507.

It is an arithmetic number, because the mean of its divisors is an integer number (385507).

2⁷⁷¹⁰¹³ is an apocalyptic number.

It is an amenable number.

771013 is a deficient number, since it is larger than the sum of its proper divisors (1).

771013 is an equidigital number, since it uses as much as digits as its factorization.

771013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147, while the sum is 19.

The square root of 771013 is about 878.0734593415. The cubic root of 771013 is about 91.6967409126.

The spelling of 771013 in words is "seven hundred seventy-one thousand, thirteen".