10776421 has 2 divisors, whose sum is σ = 10776422. Its totient is φ = 10776420.

The previous prime is 10776413. The next prime is 10776427. The reversal of 10776421 is 12467701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10692900 + 83521 = 3270^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 10776421 - 2³ = 10776413 is a prime.

It is a super-2 number, since 2×10776421² = 232262499138482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10776421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10776427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388210 + 5388211.

It is an arithmetic number, because the mean of its divisors is an integer number (5388211).

Almost surely, 2^10776421 is an apocalyptic number.

It is an amenable number.

10776421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10776421 is an equidigital number, since it uses as much as digits as its factorization.

10776421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 10776421 is about 3282.7459542280. The cubic root of 10776421 is about 220.8809101558.

The spelling of 10776421 in words is "ten million, seven hundred seventy-six thousand, four hundred twenty-one".