1379875791 has 8 divisors (see below), whose sum is σ = 2102667904. Its totient is φ = 788500440.

The previous prime is 1379875753. The next prime is 1379875811. The reversal of 1379875791 is 1975789731.

It is a happy number.

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

It is not a de Polignac number, because 1379875791 - 2¹¹ = 1379873743 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 (1379875291) 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, 32854165 + ... + 32854206.

It is an arithmetic number, because the mean of its divisors is an integer number (262833488).

Almost surely, 2^1379875791 is an apocalyptic number.

1379875791 is a deficient number, since it is larger than the sum of its proper divisors (722792113).

1379875791 is an equidigital number, since it uses as much as digits as its factorization.

1379875791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65708381.

The product of its digits is 3333960, while the sum is 57.

The square root of 1379875791 is about 37146.6794074518. The cubic root of 1379875791 is about 1113.3028780100.

The spelling of 1379875791 in words is "one billion, three hundred seventy-nine million, eight hundred seventy-five thousand, seven hundred ninety-one".