787379345 has 4 divisors (see below), whose sum is σ = 944855220. Its totient is φ = 629903472.

The previous prime is 787379317. The next prime is 787379347. The reversal of 787379345 is 543973787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543973787 = 7 ⋅77710541.

It can be written as a sum of positive squares in 2 ways, for example, as 133656721 + 653722624 = 11561^2 + 25568^2 .

It is a cyclic number.

It is not a de Polignac number, because 787379345 - 2¹⁰ = 787378321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (787379347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78737930 + ... + 78737939.

It is an arithmetic number, because the mean of its divisors is an integer number (236213805).

Almost surely, 2^787379345 is an apocalyptic number.

It is an amenable number.

787379345 is a deficient number, since it is larger than the sum of its proper divisors (157475875).

787379345 is a wasteful number, since it uses less digits than its factorization.

787379345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157475874.

The product of its digits is 4445280, while the sum is 53.

The square root of 787379345 is about 28060.2805581127. The cubic root of 787379345 is about 923.4102110163.

The spelling of 787379345 in words is "seven hundred eighty-seven million, three hundred seventy-nine thousand, three hundred forty-five".