773281313 has 8 divisors (see below), whose sum is σ = 884560128. Its totient is φ = 662205024.

The previous prime is 773281303. The next prime is 773281331. The reversal of 773281313 is 313182377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 773281313 - 2⁴ = 773281297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773281303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42356 + ... + 57797.

It is an arithmetic number, because the mean of its divisors is an integer number (110570016).

Almost surely, 2^773281313 is an apocalyptic number.

It is an amenable number.

773281313 is a deficient number, since it is larger than the sum of its proper divisors (111278815).

773281313 is a wasteful number, since it uses less digits than its factorization.

773281313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101263.

The product of its digits is 21168, while the sum is 35.

The square root of 773281313 is about 27807.9361513939. The cubic root of 773281313 is about 917.8657652162.

The spelling of 773281313 in words is "seven hundred seventy-three million, two hundred eighty-one thousand, three hundred thirteen".