1347025679 has 2 divisors, whose sum is σ = 1347025680. Its totient is φ = 1347025678.

The previous prime is 1347025639. The next prime is 1347025681. The reversal of 1347025679 is 9765207431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1347025679 - 2¹² = 1347021583 is a prime.

It is a super-2 number, since 2×1347025679² = 3628956359770822082, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1347025681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1347025619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673512839 + 673512840.

It is an arithmetic number, because the mean of its divisors is an integer number (673512840).

Almost surely, 2^1347025679 is an apocalyptic number.

1347025679 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347025679 is an equidigital number, since it uses as much as digits as its factorization.

1347025679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 1347025679 is about 36701.8484411889. The cubic root of 1347025679 is about 1104.3971866810.

The spelling of 1347025679 in words is "one billion, three hundred forty-seven million, twenty-five thousand, six hundred seventy-nine".