1298947 has 8 divisors (see below), whose sum is σ = 1409744. Its totient is φ = 1189728.

The previous prime is 1298923. The next prime is 1298951. The reversal of 1298947 is 7498921.

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

It is a cyclic number.

It is not a de Polignac number, because 1298947 - 2⁷ = 1298819 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1298047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (176218).

2^1298947 is an apocalyptic number.

1298947 is a deficient number, since it is larger than the sum of its proper divisors (110797).

1298947 is a wasteful number, since it uses less digits than its factorization.

1298947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its digits is 36288, while the sum is 40.

The square root of 1298947 is about 1139.7135605054. The cubic root of 1298947 is about 109.1098127384.

The spelling of 1298947 in words is "one million, two hundred ninety-eight thousand, nine hundred forty-seven".