773272818 has 20 divisors (see below), whose sum is σ = 1732704270. Its totient is φ = 257757552.

The previous prime is 773272813. The next prime is 773272831. The reversal of 773272818 is 818272377.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 571831569 + 201441249 = 23913^2 + 14193^2 .

It is a super-2 number, since 2×773272818² = 1195901702115322248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (773272813) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2386483 + ... + 2386806.

Almost surely, 2^773272818 is an apocalyptic number.

773272818 is an abundant number, since it is smaller than the sum of its proper divisors (959431452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

773272818 is a wasteful number, since it uses less digits than its factorization.

773272818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773303 (or 4773294 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 773272818 is about 27807.7834068090. The cubic root of 773272818 is about 917.8624040857.

The spelling of 773272818 in words is "seven hundred seventy-three million, two hundred seventy-two thousand, eight hundred eighteen".