779469145 has 32 divisors (see below), whose sum is σ = 1172973312. Its totient is φ = 484054272.

The previous prime is 779469139. The next prime is 779469151. The reversal of 779469145 is 541964977.

It is an interprime number because it is at equal distance from previous prime (779469139) and next prime (779469151).

It is not a de Polignac number, because 779469145 - 2¹¹ = 779467097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 779469092 and 779469101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7954 + ... + 40276.

It is an arithmetic number, because the mean of its divisors is an integer number (36655416).

Almost surely, 2^779469145 is an apocalyptic number.

It is an amenable number.

779469145 is a deficient number, since it is larger than the sum of its proper divisors (393504167).

779469145 is a wasteful number, since it uses less digits than its factorization.

779469145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32401.

The product of its digits is 1905120, while the sum is 52.

The square root of 779469145 is about 27918.9746409140. The cubic root of 779469145 is about 920.3075314832.

The spelling of 779469145 in words is "seven hundred seventy-nine million, four hundred sixty-nine thousand, one hundred forty-five".