10766621 has 2 divisors, whose sum is σ = 10766622. Its totient is φ = 10766620.

The previous prime is 10766617. The next prime is 10766629. The reversal of 10766621 is 12666701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9523396 + 1243225 = 3086^2 + 1115^2 .

It is an emirp because it is prime and its reverse (12666701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10766621 - 2² = 10766617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10766629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5383310 + 5383311.

It is an arithmetic number, because the mean of its divisors is an integer number (5383311).

Almost surely, 2^10766621 is an apocalyptic number.

It is an amenable number.

10766621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10766621 is an equidigital number, since it uses as much as digits as its factorization.

10766621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 10766621 is about 3281.2529619034. The cubic root of 10766621 is about 220.8139340105.

The spelling of 10766621 in words is "ten million, seven hundred sixty-six thousand, six hundred twenty-one".