10773781 has 2 divisors, whose sum is σ = 10773782. Its totient is φ = 10773780.

The previous prime is 10773769. The next prime is 10773797. The reversal of 10773781 is 18737701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10297681 + 476100 = 3209^2 + 690^2 .

It is an emirp because it is prime and its reverse (18737701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10773781 - 2¹³ = 10765589 is a prime.

It is a super-2 number, since 2×10773781² = 232148714071922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10773731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5386890 + 5386891.

It is an arithmetic number, because the mean of its divisors is an integer number (5386891).

Almost surely, 2^10773781 is an apocalyptic number.

It is an amenable number.

10773781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10773781 is an equidigital number, since it uses as much as digits as its factorization.

10773781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 10773781 is about 3282.3438272064. The cubic root of 10773781 is about 220.8628715996.

The spelling of 10773781 in words is "ten million, seven hundred seventy-three thousand, seven hundred eighty-one".