1307850705 has 40 divisors (see below), whose sum is σ = 2679369792. Its totient is φ = 597873312.

The previous prime is 1307850697. The next prime is 1307850707. The reversal of 1307850705 is 5070587031.

It is not a de Polignac number, because 1307850705 - 2³ = 1307850697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1307850705.

It is not an unprimeable number, because it can be changed into a prime (1307850707) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 227827 + ... + 233496.

Almost surely, 2^1307850705 is an apocalyptic number.

1307850705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307850705 is an abundant number, since it is smaller than the sum of its proper divisors (1371519087).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1307850705 is an equidigital number, since it uses as much as digits as its factorization.

1307850705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461347 (or 461338 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1307850705 is about 36164.2185730592. The cubic root of 1307850705 is about 1093.5854505980.

The spelling of 1307850705 in words is "one billion, three hundred seven million, eight hundred fifty thousand, seven hundred five".