1309434797 has 8 divisors (see below), whose sum is σ = 1438063200. Its totient is φ = 1182404560.

The previous prime is 1309434787. The next prime is 1309434803. The reversal of 1309434797 is 7974349031.

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 1309434797 - 2⁶ = 1309434733 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 (1309434727) 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, 397823 + ... + 401100.

It is an arithmetic number, because the mean of its divisors is an integer number (179757900).

Almost surely, 2^1309434797 is an apocalyptic number.

It is an amenable number.

1309434797 is a deficient number, since it is larger than the sum of its proper divisors (128628403).

1309434797 is a wasteful number, since it uses less digits than its factorization.

1309434797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799083.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 1309434797 is about 36186.1133171276. The cubic root of 1309434797 is about 1094.0267958304.

The spelling of 1309434797 in words is "one billion, three hundred nine million, four hundred thirty-four thousand, seven hundred ninety-seven".