777113345 has 4 divisors (see below), whose sum is σ = 932536020. Its totient is φ = 621690672.

The previous prime is 777113341. The next prime is 777113347. The reversal of 777113345 is 543311777.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543311777 = 67 ⋅8109131.

It can be written as a sum of positive squares in 2 ways, for example, as 583319104 + 193794241 = 24152^2 + 13921^2 .

It is a cyclic number.

It is not a de Polignac number, because 777113345 - 2² = 777113341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 777113299 and 777113308.

It is not an unprimeable number, because it can be changed into a prime (777113341) 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, 77711330 + ... + 77711339.

It is an arithmetic number, because the mean of its divisors is an integer number (233134005).

Almost surely, 2^777113345 is an apocalyptic number.

It is an amenable number.

777113345 is a deficient number, since it is larger than the sum of its proper divisors (155422675).

777113345 is a wasteful number, since it uses less digits than its factorization.

777113345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155422674.

The product of its digits is 61740, while the sum is 38.

The square root of 777113345 is about 27876.7527700053. The cubic root of 777113345 is about 919.3794432848.

The spelling of 777113345 in words is "seven hundred seventy-seven million, one hundred thirteen thousand, three hundred forty-five".