772441641 has 6 divisors (see below), whose sum is σ = 1115749050. Its totient is φ = 514961088.

The previous prime is 772441619. The next prime is 772441643. The reversal of 772441641 is 146144277.

It is a happy number.

772441641 is a `hidden beast` number, since 7 + 7 + 2 + 4 + 4 + 1 + 641 = 666.

It can be written as a sum of positive squares in only one way, i.e., 686230416 + 86211225 = 26196^2 + 9285^2 .

It is not a de Polignac number, because 772441641 - 2⁶ = 772441577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 772441596 and 772441605.

It is not an unprimeable number, because it can be changed into a prime (772441643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42913416 + ... + 42913433.

It is an arithmetic number, because the mean of its divisors is an integer number (185958175).

Almost surely, 2^772441641 is an apocalyptic number.

It is an amenable number.

772441641 is a deficient number, since it is larger than the sum of its proper divisors (343307409).

772441641 is a wasteful number, since it uses less digits than its factorization.

772441641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85826855 (or 85826852 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 772441641 is about 27792.8343462843. The cubic root of 772441641 is about 917.5334216060.

The spelling of 772441641 in words is "seven hundred seventy-two million, four hundred forty-one thousand, six hundred forty-one".