1307891607 has 16 divisors (see below), whose sum is σ = 1942866432. Its totient is φ = 775795520.

The previous prime is 1307891539. The next prime is 1307891621. The reversal of 1307891607 is 7061987031.

It is a cyclic number.

It is not a de Polignac number, because 1307891607 - 2¹⁹ = 1307367319 is a prime.

It is a super-2 number, since 2×1307891607² = 3421160911322084898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307891647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420078 + ... + 423179.

It is an arithmetic number, because the mean of its divisors is an integer number (121429152).

Almost surely, 2^1307891607 is an apocalyptic number.

1307891607 is a deficient number, since it is larger than the sum of its proper divisors (634974825).

1307891607 is a wasteful number, since it uses less digits than its factorization.

1307891607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843318.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1307891607 is about 36164.7840723541. The cubic root of 1307891607 is about 1093.5968508201.

The spelling of 1307891607 in words is "one billion, three hundred seven million, eight hundred ninety-one thousand, six hundred seven".