773690081 has 4 divisors (see below), whose sum is σ = 778162452. Its totient is φ = 769217712.

The previous prime is 773690063. The next prime is 773690087. The reversal of 773690081 is 180096377.

773690081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 739350481 + 34339600 = 27191^2 + 5860^2 .

It is a cyclic number.

It is not a de Polignac number, because 773690081 - 2¹⁴ = 773673697 is a prime.

It is a super-2 number, since 2×773690081² = 1197192682875573122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773690087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235926 + ... + 2236271.

It is an arithmetic number, because the mean of its divisors is an integer number (194540613).

Almost surely, 2^773690081 is an apocalyptic number.

It is an amenable number.

773690081 is a deficient number, since it is larger than the sum of its proper divisors (4472371).

773690081 is a wasteful number, since it uses less digits than its factorization.

773690081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472370.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 773690081 is about 27815.2850246047. The cubic root of 773690081 is about 918.0274692236.

The spelling of 773690081 in words is "seven hundred seventy-three million, six hundred ninety thousand, eighty-one".