1391079614 has 4 divisors (see below), whose sum is σ = 2086619424. Its totient is φ = 695539806.

The previous prime is 1391079601. The next prime is 1391079617. The reversal of 1391079614 is 4169701931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4169701931 = 10601 ⋅393331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391079617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347769902 + ... + 347769905.

It is an arithmetic number, because the mean of its divisors is an integer number (521654856).

Almost surely, 2^1391079614 is an apocalyptic number.

1391079614 is a deficient number, since it is larger than the sum of its proper divisors (695539810).

1391079614 is an equidigital number, since it uses as much as digits as its factorization.

1391079614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695539809.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1391079614 is about 37297.1797057097. The cubic root of 1391079614 is about 1116.3078927416.

The spelling of 1391079614 in words is "one billion, three hundred ninety-one million, seventy-nine thousand, six hundred fourteen".