775746313 has 4 divisors (see below), whose sum is σ = 776869648. Its totient is φ = 774622980.

The previous prime is 775746311. The next prime is 775746347. The reversal of 775746313 is 313647577.

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: 313647577 = 2801 ⋅111977.

It is a cyclic number.

It is not a de Polignac number, because 775746313 - 2¹ = 775746311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 775746313.

It is not an unprimeable number, because it can be changed into a prime (775746311) 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, 560631 + ... + 562012.

It is an arithmetic number, because the mean of its divisors is an integer number (194217412).

Almost surely, 2^775746313 is an apocalyptic number.

It is an amenable number.

775746313 is a deficient number, since it is larger than the sum of its proper divisors (1123335).

775746313 is a wasteful number, since it uses less digits than its factorization.

775746313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123334.

The product of its digits is 370440, while the sum is 43.

The square root of 775746313 is about 27852.2227658763. Note that the first 3 decimals coincide. The cubic root of 775746313 is about 918.8400287053.

The spelling of 775746313 in words is "seven hundred seventy-five million, seven hundred forty-six thousand, three hundred thirteen".