1297908 has 36 divisors (see below), whose sum is σ = 3389568. Its totient is φ = 418320.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297908 is 8097921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 535 + ... + 1697.

2^1297908 is an apocalyptic number.

1297908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694784).

1297908 is an abundant number, since it is smaller than the sum of its proper divisors (2091660).

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

1297908 is a wasteful number, since it uses less digits than its factorization.

1297908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1297908 is about 1139.2576530355. The cubic root of 1297908 is about 109.0807134411.

The spelling of 1297908 in words is "one million, two hundred ninety-seven thousand, nine hundred eight".