1079785391 has 8 divisors (see below), whose sum is σ = 1120025280. Its totient is φ = 1039745952.

The previous prime is 1079785387. The next prime is 1079785411. The reversal of 1079785391 is 1935879701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1079785391 - 2² = 1079785387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079785331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39095 + ... + 60728.

It is an arithmetic number, because the mean of its divisors is an integer number (140003160).

Almost surely, 2^1079785391 is an apocalyptic number.

1079785391 is a deficient number, since it is larger than the sum of its proper divisors (40239889).

1079785391 is an equidigital number, since it uses as much as digits as its factorization.

1079785391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100225.

The product of its (nonzero) digits is 476280, while the sum is 50.

The square root of 1079785391 is about 32860.0881161326. The cubic root of 1079785391 is about 1025.9176049434.

The spelling of 1079785391 in words is "one billion, seventy-nine million, seven hundred eighty-five thousand, three hundred ninety-one".