774208085 has 12 divisors (see below), whose sum is σ = 1080731628. Its totient is φ = 530885376.

The previous prime is 774208081. The next prime is 774208121. The reversal of 774208085 is 580802477.

It can be written as a sum of positive squares in 2 ways, for example, as 602309764 + 171898321 = 24542^2 + 13111^2 .

It is not a de Polignac number, because 774208085 - 2² = 774208081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774208081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1579772 + ... + 1580261.

It is an arithmetic number, because the mean of its divisors is an integer number (90060969).

Almost surely, 2^774208085 is an apocalyptic number.

It is an amenable number.

774208085 is a deficient number, since it is larger than the sum of its proper divisors (306523543).

774208085 is a wasteful number, since it uses less digits than its factorization.

774208085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160052 (or 3160045 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 774208085 is about 27824.5949656055. The cubic root of 774208085 is about 918.2323039601.

The spelling of 774208085 in words is "seven hundred seventy-four million, two hundred eight thousand, eighty-five".