1298621 has 8 divisors (see below), whose sum is σ = 1353984. Its totient is φ = 1244160.

The previous prime is 1298617. The next prime is 1298641. The reversal of 1298621 is 1268921.

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 1298621 - 2² = 1298617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298611) 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, 4925 + ... + 5181.

It is an arithmetic number, because the mean of its divisors is an integer number (169248).

2^1298621 is an apocalyptic number.

It is an amenable number.

1298621 is a deficient number, since it is larger than the sum of its proper divisors (55363).

1298621 is a wasteful number, since it uses less digits than its factorization.

1298621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its digits is 1728, while the sum is 29.

The square root of 1298621 is about 1139.5705331396. The cubic root of 1298621 is about 109.1006841199.

The spelling of 1298621 in words is "one million, two hundred ninety-eight thousand, six hundred twenty-one".