773475649 has 4 divisors (see below), whose sum is σ = 783266560. Its totient is φ = 763684740.

The previous prime is 773475641. The next prime is 773475653. The reversal of 773475649 is 946574377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 946574377 = 7 ⋅135224911.

It is a cyclic number.

It is not a de Polignac number, because 773475649 - 2³ = 773475641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 773475596 and 773475605.

It is not an unprimeable number, because it can be changed into a prime (773475641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4895337 + ... + 4895494.

It is an arithmetic number, because the mean of its divisors is an integer number (195816640).

Almost surely, 2^773475649 is an apocalyptic number.

773475649 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

773475649 is a deficient number, since it is larger than the sum of its proper divisors (9790911).

773475649 is an equidigital number, since it uses as much as digits as its factorization.

773475649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9790910.

The product of its digits is 4445280, while the sum is 52.

The square root of 773475649 is about 27811.4301861663. The cubic root of 773475649 is about 917.9426494487.

The spelling of 773475649 in words is "seven hundred seventy-three million, four hundred seventy-five thousand, six hundred forty-nine".