773649072 has 60 divisors (see below), whose sum is σ = 2474452240. Its totient is φ = 221042304.

The previous prime is 773649061. The next prime is 773649167. The reversal of 773649072 is 270946377.

It is a happy number.

773649072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×773649072² = 1197065773212922368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 382747 + ... + 384762.

Almost surely, 2^773649072 is an apocalyptic number.

773649072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

773649072 is an abundant number, since it is smaller than the sum of its proper divisors (1700803168).

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

773649072 is a wasteful number, since it uses less digits than its factorization.

773649072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767530 (or 767521 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 773649072 is about 27814.5478482035. The cubic root of 773649072 is about 918.0112490968.

It can be divided in two parts, 77364 and 9072, that added together give a square (86436 = 294²).

The spelling of 773649072 in words is "seven hundred seventy-three million, six hundred forty-nine thousand, seventy-two".