772527961 has 4 divisors (see below), whose sum is σ = 772719012. Its totient is φ = 772336912.

The previous prime is 772527949. The next prime is 772527971. The reversal of 772527961 is 169725277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 683508736 + 89019225 = 26144^2 + 9435^2 .

It is a cyclic number.

It is not a de Polignac number, because 772527961 - 2²⁹ = 235657049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772527901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89326 + ... + 97591.

It is an arithmetic number, because the mean of its divisors is an integer number (193179753).

Almost surely, 2^772527961 is an apocalyptic number.

It is an amenable number.

772527961 is a deficient number, since it is larger than the sum of its proper divisors (191051).

772527961 is a wasteful number, since it uses less digits than its factorization.

772527961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191050.

The product of its digits is 370440, while the sum is 46.

The square root of 772527961 is about 27794.3872211639. The cubic root of 772527961 is about 917.5675983130.

The spelling of 772527961 in words is "seven hundred seventy-two million, five hundred twenty-seven thousand, nine hundred sixty-one".