791378853 has 4 divisors (see below), whose sum is σ = 1055171808. Its totient is φ = 527585900.

The previous prime is 791378839. The next prime is 791378857. The reversal of 791378853 is 358873197.

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.

It is a cyclic number.

It is not a de Polignac number, because 791378853 - 2²⁴ = 774601637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 791378796 and 791378805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791378857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131896473 + ... + 131896478.

It is an arithmetic number, because the mean of its divisors is an integer number (263792952).

Almost surely, 2^791378853 is an apocalyptic number.

It is an amenable number.

791378853 is a deficient number, since it is larger than the sum of its proper divisors (263792955).

791378853 is a wasteful number, since it uses less digits than its factorization.

791378853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263792954.

The product of its digits is 1270080, while the sum is 51.

The square root of 791378853 is about 28131.4566455418. The cubic root of 791378853 is about 924.9710643006.

It can be divided in two parts, 79137 and 8853, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 791378853 in words is "seven hundred ninety-one million, three hundred seventy-eight thousand, eight hundred fifty-three".