779401345 has 16 divisors (see below), whose sum is σ = 985623552. Its totient is φ = 590497600.

The previous prime is 779401333. The next prime is 779401373. The reversal of 779401345 is 543104977.

It is not a de Polignac number, because 779401345 - 2⁵ = 779401313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 779401298 and 779401307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21937 + ... + 45166.

It is an arithmetic number, because the mean of its divisors is an integer number (61601472).

Almost surely, 2^779401345 is an apocalyptic number.

It is an amenable number.

779401345 is a deficient number, since it is larger than the sum of its proper divisors (206222207).

779401345 is a wasteful number, since it uses less digits than its factorization.

779401345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67232.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 779401345 is about 27917.7603865353. The cubic root of 779401345 is about 920.2808472284.

The spelling of 779401345 in words is "seven hundred seventy-nine million, four hundred one thousand, three hundred forty-five".