766236901 has 2 divisors, whose sum is σ = 766236902. Its totient is φ = 766236900.

The previous prime is 766236871. The next prime is 766236923. The reversal of 766236901 is 109632667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580569025 + 185667876 = 24095^2 + 13626^2 .

It is a cyclic number.

It is not a de Polignac number, because 766236901 - 2¹⁵ = 766204133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766236941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383118450 + 383118451.

It is an arithmetic number, because the mean of its divisors is an integer number (383118451).

Almost surely, 2^766236901 is an apocalyptic number.

It is an amenable number.

766236901 is a deficient number, since it is larger than the sum of its proper divisors (1).

766236901 is an equidigital number, since it uses as much as digits as its factorization.

766236901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 766236901 is about 27680.9844658748. The cubic root of 766236901 is about 915.0700777446.

The spelling of 766236901 in words is "seven hundred sixty-six million, two hundred thirty-six thousand, nine hundred one".