766625273 has 2 divisors, whose sum is σ = 766625274. Its totient is φ = 766625272.

The previous prime is 766625239. The next prime is 766625287. The reversal of 766625273 is 372526667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 633176569 + 133448704 = 25163^2 + 11552^2 .

It is a cyclic number.

It is not a de Polignac number, because 766625273 - 2¹⁶ = 766559737 is a prime.

It is not a weakly prime, because it can be changed into another prime (766625203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383312636 + 383312637.

It is an arithmetic number, because the mean of its divisors is an integer number (383312637).

Almost surely, 2^766625273 is an apocalyptic number.

It is an amenable number.

766625273 is a deficient number, since it is larger than the sum of its proper divisors (1).

766625273 is an equidigital number, since it uses as much as digits as its factorization.

766625273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The square root of 766625273 is about 27687.9987178561. The cubic root of 766625273 is about 915.2246546425.

The spelling of 766625273 in words is "seven hundred sixty-six million, six hundred twenty-five thousand, two hundred seventy-three".