1307906 has 8 divisors (see below), whose sum is σ = 1973244. Its totient is φ = 650160.

The previous prime is 1307893. The next prime is 1307909. The reversal of 1307906 is 6097031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 737881 + 570025 = 859^2 + 755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1307909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445 + ... + 2168.

2^1307906 is an apocalyptic number.

1307906 is a deficient number, since it is larger than the sum of its proper divisors (665338).

1307906 is a wasteful number, since it uses less digits than its factorization.

1307906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 1307906 is about 1143.6371802281. The cubic root of 1307906 is about 109.3600862386.

The spelling of 1307906 in words is "one million, three hundred seven thousand, nine hundred six".