1297907 has 4 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 1198056.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297907 is 7097921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1297907 - 2⁸ = 1297651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1297927) 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, 49907 + ... + 49932.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

2^1297907 is an apocalyptic number.

1297907 is a deficient number, since it is larger than the sum of its proper divisors (99853).

1297907 is an equidigital number, since it uses as much as digits as its factorization.

1297907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99852.

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 1297907 is about 1139.2572141532. The cubic root of 1297907 is about 109.0806854266.

The spelling of 1297907 in words is "one million, two hundred ninety-seven thousand, nine hundred seven".