772774961 has 8 divisors (see below), whose sum is σ = 883394304. Its totient is φ = 662211360.

The previous prime is 772774957. The next prime is 772774969. The reversal of 772774961 is 169477277.

772774961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 772774961 - 2² = 772774957 is a prime.

It is a super-2 number, since 2×772774961² = 1194362280697103042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (772774969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21941 + ... + 45021.

It is an arithmetic number, because the mean of its divisors is an integer number (110424288).

Almost surely, 2^772774961 is an apocalyptic number.

It is an amenable number.

772774961 is a deficient number, since it is larger than the sum of its proper divisors (110619343).

772774961 is a wasteful number, since it uses less digits than its factorization.

772774961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27871.

The product of its digits is 1037232, while the sum is 50.

The square root of 772774961 is about 27798.8302092012. The cubic root of 772774961 is about 917.6653790442.

The spelling of 772774961 in words is "seven hundred seventy-two million, seven hundred seventy-four thousand, nine hundred sixty-one".