1309697607 has 16 divisors (see below), whose sum is σ = 1842048000. Its totient is φ = 825433344.

The previous prime is 1309697593. The next prime is 1309697617. The reversal of 1309697607 is 7067969031.

It is not a de Polignac number, because 1309697607 - 2⁷ = 1309697479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309697617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3319 + ... + 51287.

It is an arithmetic number, because the mean of its divisors is an integer number (115128000).

Almost surely, 2^1309697607 is an apocalyptic number.

1309697607 is a deficient number, since it is larger than the sum of its proper divisors (532350393).

1309697607 is a wasteful number, since it uses less digits than its factorization.

1309697607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48470.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 1309697607 is about 36189.7445003415. The cubic root of 1309697607 is about 1094.0999831194.

The spelling of 1309697607 in words is "one billion, three hundred nine million, six hundred ninety-seven thousand, six hundred seven".