767766061 has 2 divisors, whose sum is σ = 767766062. Its totient is φ = 767766060.

The previous prime is 767766047. The next prime is 767766091. The reversal of 767766061 is 160667767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556063561 + 211702500 = 23581^2 + 14550^2 .

It is a cyclic number.

It is not a de Polignac number, because 767766061 - 2¹³ = 767757869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (767766091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383883030 + 383883031.

It is an arithmetic number, because the mean of its divisors is an integer number (383883031).

Almost surely, 2^767766061 is an apocalyptic number.

It is an amenable number.

767766061 is a deficient number, since it is larger than the sum of its proper divisors (1).

767766061 is an equidigital number, since it uses as much as digits as its factorization.

767766061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 767766061 is about 27708.5918263632. The cubic root of 767766061 is about 915.6784008133.

The spelling of 767766061 in words is "seven hundred sixty-seven million, seven hundred sixty-six thousand, sixty-one".